TheOtherBob

I have to agree -- I mean, what an awful thing to do to someone who's just been robbed.

And for what possible purpose? Ostensibly the OP is looking to gather anecdotes to help him "decide" whether U-locks can be defeated. But if you want to know the answer to that, it's pretty straightforward: U-locks can be defeated, but they're harder to defeat and statistically safer than cable locks -- just as the OP believes. Whether you are safe leaving your bike somewhere depends not really on the lock but primarily where you're leaving it. Leave it in a place with skilled bike thieves, and nothing short of a cop sitting on the bike the whole time will keep it safe. Leave it unattended and unlocked in your mom's living room, and it will probably be ok. Nothing that any crime victim can say will add to that.

So...I mean, really, what's the point of this? To remind people that they're idiots?