It's just fine, until it's not. If a piston skirt comes all the way off, the piston turns sideways and pokes the end of the connecting rod and the wrist pin through a cylinder wall.

Do you play poker? I'd like to get you into a high-stakes game and wait for you to draw to an inside straight if you're willing to bet you won't have a catastrophic failure with an audible knock.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!