As a climber, I found this example of type III fun hilarious:

> Offwidths

For those not familiar, they involve shoving part of your body into a crack and trying to wriggle your way up. The shoulder/knee jammed in may keep you from falling out while also introducing a significant chance of getting stuck and needing rescue. Meanwhile the majority of your weight outside the crack creates an uncomfortable/painful torque.

And yet, there are people who actually enjoy offwidth climbing. Personally I've enjoyed the challenge, but the ones I've climbed has led to days of pain afterwards. There's still an allure to attempting them though.