My brother has some problems. We passed by some cows and he goes, 'omg, i saw a unicorn!' and we were just like...huh? And my mom tells him to think for a few seconds and then tell her what he saw. And hes like,'it had a horn on its head, i swear!' and we just stare at him and he says 'well, maybe it was just a horse...'
It was hilarious.