They sure do. I curl singles or even a bar and the inside of my left arm from elbow to a couple inches under my shoulder feels like a second person is sticking bent syringes soaked in a dirty diaper into my arm nonstop.
The maddening part was there was no, "Hey, let's give it a go and if the bicep detaches, we go back in with a nailgun and physically make it impossible for it to detach from your arm."
No it was, (Hard Tone) "It's an 85/15 with the 15% being a life long physical deformity called Popeye arm that will basically make you look like a freak. Small children will probably run away in complete terror if you get near enough for them to see you. You will be shunned, shunned from a society that cannot and will not accept you because of this Popeye arm. They might bar you from beaches and parks where people might be blighted by your deformity. Hell, we might just rename the deformity DazedNConfused arm just because it'll just be that bad if we fail."
(Soft Tone) "Sooo, go home and check the internet for Popeye arm and get back to us if you want to do the surgery."