When it comes to the world of flirtation, anything seems fair game. However, it’s important to be selective when searching for a mate. Approaching a girl expends valuable resources that you don’t need to be throwing into a fire. So how do you know if the chick you’re thinking about is worth it? Here’s five women you should avoid for your own safety and sanity.

It’s easy to forget that dads weren’t always dads, which is why we honor them (for giving up their dreams for you). But instead of just doing whatever your mom or sister planned this year, give him some quality guy-time–because that’s all he really wants. And remember, just because Father’s Day is only today, that doesn’t mean you these rad guy activities wouldn’t still kick ass.