Funny seeing the /r/livesound link.

Worked in live entertainment for a while. One cable we would use a lot is called a 'two-fer', it has one male and that splits to two female ends (so you can plug two fixtures into one outlet or dimmer). There also exists a 'suicide two-fer' that is the opposite, you can imagine why it has that name.

I believe I've also seen some 'suicide' cable setups when we needed to make multi-phase power for a motor controller by using different 120v sources. Can't remember the exact cabling of that but someone did end up grabbing a hot male end in that process and got a nice tickle.