Walk of.....

The walk of shame. We have all done it. Slinking out of some persons house, looking right and then left making sure no one you know sees you en dishabille. The hot pants you wore last night that made your ass look amazing are now sagging a bit in the most awkward places, making you wonder if strip twister was the best idea. The makeup that was so carefully applied has completely run away from your face but has left just enough( in every crease on your face you didn't know you had) to make people think zombies are hotter than you are right now. Your hair.....enough said....You are also pretty sure you wore panties last night but just couldn't muster the energy to look for them. At least you had enough forethought to leave your glasses where you could find them!  
 So my question is when does the walk of shame turn into just leaving someone's house? Is it a "between the hours of" situation or the level of commitment involved or a "well, he bought my dinner, I kinda owed him, right?"
  If it is a 'between the hours of" situation, what are the hours? If you are leaving between the hours of 2am-4am, either you were afraid he would want to repeat an unspectacular performance, making you have to wonder just how many fake orgasms you can have in one night, or the hotel was only paid up for 2 hours, or you just remembered that you have to wash your hair, again (other excuses that would work well here are "my mom is sick and i have to pick up her prescriptions or my dog just died and I have to dig a very large hole for me--i mean for him to be buried in).If you are leaving between the hours of 4am-6am, the sex was obviously worth a second coming (HA!) but feel that sleeping together is just way too intimate (i can understand that), or you are sober enough now that driving home is probably for the best or, you are not comfortable enough with him seeing that you do not look like a superstar in the early hours and morning breath is a very real affliction. Anything after 6am is where the waters get murky. After strip twister and tee many two martoonis (oh yeah) sleep is seriously for the best. At this point, anywhere is good just as long as he doesn't care that a) you will snore and b) bodily function noises will occur and it doesn't mean anything. On the other hand it can also mean that you have reached a level of intimacy that it doesn't matter that you don't look like a superstar, he thinks zombies are cute and, the fact that you have morning breath means you are human. Of course it could also mean that the bed is extremely comfortable and you really were very sore after playing strip twister.