Few months ago, went to have an early breakfast at the Hougang Hainanese food centre and saw a one-armed man making meatballs by hand. He was slapping the minced meat and stirring and mixing the ingredients in, all with one arm. Tedious doesn't even begin to describe it. Saw a recent video about this stall again, so decide to share. If any bros around the area, and have time, can give it a try.
P.S. I am not in anyway related to the hawker and do not know him personally, his bak chor mee is slightly above average at best and mostly average, nothing special. But compared to able-bodied losers whining and complaining about being under-employed or unemployed even with a "Diploma", "Degree" and what-nots, peers driving fancy cars and shit, this guy stands above many. So, give him a hand, 帮帮忙 (excuse the pun).