Kirk Pierce, a lad who was about 3 years below me, of an extremely pleasant disposition and generally a nice kid to have around. Through some unfortunate birth defect (I think) Kirk had only an index finger and a little finger on each hand. He later had the index fingers removed and grafted onto where his thumbs should be, giving him the ability to grab things in a more effective pincer-type fashion. His preferred greeting (presumably to cause maximum discomfort and embarassment to the recipient) was a handshake, but occasionally he would opt for a powerful 'nip' of the upper arm, hence the name 'Crab-man'.