How do you know when to stop drinking? When you look like one of the people in these 20+ pics

After a long week, there's no better feeling than letting your hair down and hitting the town with your friends. The booze flows freely and tongues start wagging. You forget about all your worries and just have a great time with your buddies, dancing, talking and reminiscing about times past.

But it's also very, very important to know your limit; to know when exactly to stop. You do not want to be one of those people who drinks too much, pukes your lungs out, and passes out on the floor, leaving your friends to carry you back home. It's not just about knowing your limits, but also respecting them. But how do you know when to stop? A good litmus test is if you ever have looked like the people in any of these pics...

#30 "And then he me!"

#29 She's waiting for the excess to drip from the sides. Clearly.

#28 We don't know what's worse, that he's passed out, or that he's passed out after drinking Bud Light