Did you fail the exam?
If yes. Then suck it up, harden the f*&k up and study some more.
The doggy doo question must not have been the only question you got wrong; so someone is doing you a favour by giving you a kick in the arse and telling you to learn your stuff. Crying over a dud question (right or wrong) isn't helping you prepare for the "journey of knockbacks"
If no. Then move on and shout the bar!
bbbbbbbbbzzzzzzzzzzbbbbbbbzzzzzzzzzzzzzzzzzz