Prof Morrison tells why Jamaicans run so fast
The definitive answer is in the second paragraph. (It's explained further down)
(OnionTerror, Tue 3 Jul 2012, 21:06, Reply)

they do it of their own accord

( cumquat may because you're mine, I walk the lino, Tue 3 Jul 2012, 21:19, Reply)

Ba-dum ...
... tish!
( Ghoti Fingers, Tue 3 Jul 2012, 21:35, Reply)

Alaska

( Jacksonville Jimmy Savile ate my hamster on, Wed 4 Jul 2012, 5:34, Reply)