- Eating badly because, frankly, cooking for one is a pain and fast food is, well, fast and cheap
- Never closing the bathroom door
- Licking the drips from the hot sauce bottle, because, after all, it's only your own germs you're sharing with yourself
- Not restraining those bodily noises
- Rinsing a spoon and leaving it out to reuse, because (see item 3)
- Developing a high tolerance for dust (resulting in the side effect of a mad rush of cleaning prior to the arrival of visitors)
- Self-indulgence -- doing whatever you want, whenever you want, spending money without discussion or consensus
PPS: is item 7 really a *dangerous* habit??