when ever im in the car with my brother and mom, they always think im the one that farted, but i dont even remember doing it or feeling it come out some how...

i know its not my mom and i know its not my br(i think)

but just incase, if they didnt fart and it was me, how did it happen with out me knowing, or what happened that made a smell


btw how do i no if someone is lieing about farting, or knowing if they r blaming it on someone?