This is something your "friend" should ask a Doctor for a professional opinion but I don't think its abnormal. Every guy has the capacity to have one at any age so as long as its occasional like you said it's not a problem.
I restrained myself and gave a serious answer because I really, really, really wanted to be sarcastic or troll. This isn't the place for this type of question..........especially if you are seriously looking for an answer.
@ChaosBlazer: If Spider-man takes out Fantomex first before he has a chance to use misdirection then he could take this but if Parker takes out anyone but him first then he possibly loses. Not sure how misdirection effects spider-sense.