judgement call

I have noticed a rapid decline in my ability to judge appropriate from inappropriate. When I was a teacher, this distinction was easier to make because I made this decision multiple times a day, but withing a confined context--school. (Pushing and using bad words ,that's easy- inappropriate. Touching other people's things without permission-totally inappropriate. Peeing on the wall of the stall not in the toilet in the boy's bathroom--definitely inappropriate and disgusting as well and to this day I cannot figure out why someone would want to do this, but believe me little boys do.) Now that I'm out in the "real" world, it's way harder to know. I'll give some examples and perhaps they'll clarify my point.

List of things that I do that I'm pretty sure are questionable if not down right inappropriate:

-I have been known on occasion to curse in front of my class.
-I find myself standing way too close to men on the escalator because they smell oh so good and I have not seen (or smelled) my sweet husband for several months now.
-Help myself (translation, use what I need at the moment and also store some in my purse for future use) to Splenda packets at restaurants/coffee shops.
-Let the grass and weeds my yard in suburbia grow so long that people are beginning to wish I'd put a junk car there so my home could officially be known as the junky house on the block.
-I return or re-gift almost every gift people give me.
-I park on the wrong side of the road while I retrieve my mail from the mailbox.
-I use the fact that I walk really fast to cut off old people at the door of the post office and super market so I can be in front of them in line.

See? This is grey area.