That's what we discussed after it left.  I was like, you know what?  I wouldn't have had any problem opening the door for a disabled or elderly person on one of those things, and I don't have a problem with people who need them using them.  I'm also not an asshole and I do hold open doors for people our of common courtesy.  When your inability to move is self-inflicted and you look like you're one french fry away from going into cardiac arrest though?  People like that can fuck right off and find ways to manage.  I'm not some kind of fucking slave for lazy gluttonous pieces of shit.