Yeah I dunno, I was brought up tipping 15-20% pre-tax. Maybe norms have changed overall. I'm around 20% now generally, but only usually throw in a dollar for take-out. Maybe that'll change. 20% for takeout would add up quick for poor students tho.
Regardless, ITT: posters who have been worked in restaurants, and posters who have not worked in restaurants, and Fok who leaves an older item from his vast belt collection each time he grabs some takeout.