Old cartoons

I have a 2 year old and a 2 month old, my friend asked if I could watch her 2.5 year old while she went to the doctors.  My son loves Mickey Mouse especially the old ones from the late 50s. We were watching one of them with a giant who finds a bale of hay and picks it up as a cigarette and start to smoke it for a brief second before Mickey jumps out of the hay.  My friend comes back and notices the giant smoking and gets sorta mad that I'd like her son watch that.  I was in complete shock since it's a cartoon and the toddlers don't even pay attention to the small details like that, I barely did.