Why do so many people believe that Tycho Brahe died from a burst bladder from "holding it", when it's impossible to voluntarily hold it in until your bladder ruptures?

Overflow incontinence happens when your bladder gets so full that the sphincters physically give way and you pee yourself. In other words the muscle would give before the bladder ruptures. I came across a thread about Tycho's death on Reddit and virtually no one was calling bullshit on the story that he died of a burst bladder because he was embarrassed to go to the bathroom during a banquet.