Fun fact: My mom got my dad a TENS Unit for Christmas!! It is a massager, but it made me laugh. Plus, all except 2 people in my family tried it and the two who got to the highest settings were the two masochists!
So far, so good with fighting because of different opinions about sexual morality or politics. *crosses fingers*
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Masochist Musing 
I have a TENS unit. It is an amazing piece of equipment, huh?
Yes! Prior to this I’d only heard of them in S&M. Now I know they are versatile and amazing in more than one way!