He's into his 33rd year and I'm not sure how much more growing up he still needs to do? Yes he is a little kid still because if I say something to him he will go to his family, he can't defend himself.
The silly part is him acting like a kid, how do you explain a grown man just tapping another man for no reason?
The reason why I opened this thread is I was unsure what to do back, if I did anything back he will go to his family and spread rumours about me. His family, uncle, aunties wouldn't do nothing because this will damage his reputation and also his family's reputation.
The fact that you are aware of the possible consequences of acting back might suggest that you've already answered your own question about what to do/ not to do.