As long as the wheelchair guy genuinely thought it was funny it's fine, but in a situation like that I would go and apologize after the race making sure wheelchair guy is alright
Lol, English is not my first language, thanks for reminding me to check the spelling, I will correct it shortly.
EDIT: Done!
Sure doesn't help that my iPhone's dictionary complain about it's own suggestions or even simple words like, "doesn't", "dictionary", "complain", "own", "even", "learned", "ignore" and "most".