Giving yourself an enema isn't on my list of mastered subjects. Enema-taking is an unpleasant experience...in fact, I'd wonder about you IF YOU DIDN'T HAVE A PROBLEM WITH IT! Putting stems up your anus, squeezing bottles of liquid down the raised in the air arse, holding it, then expelling your inards isn't a great feeling to experience. I can think of 100,344 other experiences I'd rather have. You're normal, that's a good thing...