pfffftttttsearing heat on the helmet.
(
Thor_sonofodin has done things, terrible things on,
Sat 28 Nov 2009, 20:36,
archived)
Friction burns can get quite nasty at those sorts of speeds.
(
xihpete A neutrino walks straight through a bar, with v>c.,
Sat 28 Nov 2009, 22:23,
archived)