This is not ideal.
Also, if we hang out with non-zombie-type people, we still want to hang out with like-minded people. This is because if we hang out with people who are only looking out for themselves, when the zombies attack, those suckers be pushing you out front like an entree, main and dessert!
The problem then becomes, if you know that they are going to try and push you to the zombies so that they can survive, you start thinking the same way! ​If you want to survive, you gotta push someone else first, and now you're acting like them and that's bad!
You want to hang out with people that support and inspire and uplift you. You want to hang out with people who make you feel amazing, and make you happy. You want to hang yout with people that won't try and eat your face off or try to give you to someone who will eat your face off. Even in non-apocalyptic times this is important!
For me, as soon as I am in a room with authors or illustrators, I know that I have found my tribe. I know they are people I want to hang around with. I went to a conference the other week, with a few hundred authors and illustrators and publishers, and it was SOOOO amazing. Just creative people wanting to learn and get better and who were super excited about doing something they totally lvoe doing. It gets me buzzing and excited and I always feel like writing something when I leave a group like that.
I have other people too, other amazing people that I love dearly who aren't necessarily authors or illustrators, but who have this energy that lifts me up and makes me feel amazing, and who, after I spend time with them, I leave feeling lighter and happier than before I caught up with them.
These are the people you want to hang out with.
These are the people that are going to make you want to be a better person.
There's a theory that you become the average of the five people you spend the most time with. So you have a choice to make. Do you want to hang out with people who are negative or who drag you down or who make you feel less than you could be or who want to eat you, or do you want to hang around with people who lift you up and make you feel Both amazing and inspired.
It seems like a pretty easy choice - it isn't always an easy thing to carry out, but it has to be done. For you to fully be the most amazing person you can be, your tribe is important, and you need to be abl;e to ease out the people who are dragging you down. Don't cut them off necessarily, just spend less time with them.
And spend more time with the awesome, amazing, legendary, champion people. They're the good ones. 

See, zombies hate water. So it's weird that just keep swimming could apply to them. But it does. Because just keep swimming means just keep going, just keep searching, don't dwell on what's happened, don't be resentful, just keep swimming and you will find what you're looking for. 
It may not be in the place you expect it to be, but you'll find it still.
Zombies "just keep swimming" when they never give up if they're trying to suck on someone's brain and that someone is trying to chop the zombie's head off with a butter knife. BUt zombies also "just keep swimming" when they finish one brain snack, or miss out on one brain snack, and they search again. They want more, always looking to be more, improve, develop.
This is something we can totally learn from. When we go after something that is really attractive to us, something that we believe will make us better people, bring us incredible joy, we gotta just keep swimming, just keep working at ways to get that thing. And if one way doesn't work, well, maybe you gotta swim in another direction. Maybe you gotta swim against the current sometimes, really pushing hard, working hard, maybe you have to go around even when what you want is right in front of you, so close you can almost touch it, taste it, but that current keeps pushing back at you.
Go around.
Find a way.
And if it turns out that you just keep swimming, and just keep swimming, but you don't reach your goal, or if you reach it and it doesn't give you what you expect ... don't be resentful. You're allowed to be upset, of course, that's natural, but then you have to look at the wonderful things you had or the wonderful things you learned or the wonderful memories, and use those, take them with you, and just keep swimming.
Because there are more wonderful things up ahead, or off to the side, and you'll find them if you just keep swimming ... or, if you're a zombie, just keep shuffling ... or, if you're a non-brain-dead human, just keep trying and searching and learning and growing and loving.
It's the only way.