When I read this question, I started to wonder about "self-punishments"...

For those who take part in this, do you feel that your punishments to yourself are more or less difficult to endure than those which would be given by a dominant or partner? Do you feel that you're more stict on yourself than another would be?

For instance, in the OP's original question, it was stated that given the outcome of the particular match he was "betting" on, he would slap himself in the balls as part of the punishment. Do you believe you're slapping yourself as hard or harder than a dominant would?

Very curious...