The obvious follow-up to the others.
I…what now?
Get up, dude. OK to use your hands. To get up.
Probably should have checked alcohol involved.
I should have offered It is the way of my people. A cultural thing. Mods, wanna get on that, por favor?
I’m not. I’m sitting on a chair. You might want to check your surveillance camera. 
WTF?!?.. Which of you fat bastards stole my legs!!!
I’m playing with the cat.
I’ve fallen and I can’t get up.
I have grandchildren.
It was there.
Was trying to clean something. Now I’ll have to sit here till it gets dirty again, unless somebody hauls my ass up.
Providing wound care to ankles or feet, most likely. It’s not dignified, but it works. (Although I’ll remember to bring my stool next time.)
This.
I am mulligrubs 
Dog snuggling, mostly.
Yoga. How many hands or legs are used to stand depends on (a) how many the instructor allows me to use and (b) how far along we are in the class… beginning of the class, one leg or both hands (no legs). End of the class, I’ll just lie here until everybody leaves, and then crawl away.
Because I have a 3 year old son and a six month old son, and I’m likely sitting on the floor playing with one or both of them.
I figured by the end of the program you’d simply levitate & float home while still in the lotus position.
This. Between board games, Legos, Lincoln Logs, etc. I spend a lot of time on the floor.