Well babysitting can be fun at times, if it's something you want to do for like a one time thing only, then I would let his folks know,that you don't want to be his babysitter on a regular basis, that way it will eliminate them calling you all the time for a babysitter.
But I work in a Childrens Museum(*#4 in the nation, ,lol, sorry had to thrown that in there) but I baby sit technically everyday and it is kinda fun, sometimes frustrating, but I think u have to really like kids or being around kids, to be a babysitter
But babysitting is fun, it's like being a kid again, just with a few extra rules . Anyways, if you do babysit, I hope you have a good time, and the kid is good and everything works out for you
Good Luck
DGP~Honey~