A few notes; I have a full sized truck, live in an apartment building, and have an infant still in a huge reverse car seat. 

Getting the kiddo in and out of the truck requires the door to be pretty far open and I'm terrified of hitting another car with the door so I park as close to the opposite line as I can without being on it. This leaves my passenger side with a crap ton of room and allows me not to worry. 

This doesn't leave much room for me to get out or the person next to me to get in so I always try to park in the last spot but it's not always available. I pull in my mirrors when next to another large vehicle to try and help with the spacing but am I still the asshole for knowingly giving the other person less room to get in and out if I'm still technically in my spot? I tried to post a picture but I'm not sure how the other people did that so I will try and post one in the comments. 