I watched someone go down for life with a felony for stealing a bathmat. It was "violent" in theory, but not practically.
It was on the back porch. The owner was home. There was a railing, which meant the bathmat was "in" the house. The house was occupied, and burglary of an occupied residence is a violent felony (they treat it like home invasion).
I had a "violent" felony for making a firecracker. They go off the federal classifications, and flash powder can be a high explosive if you have enough of it. Reckless, intentional, or negligent possession of high explosives is a "violent" felony.
Mandatory minimum 5 year sentence, and treated the same as someone who had a pipe bomb. I pled guilty to avoid the sentence, and it was reduced to a misdemeanour in a year or so.
It's easier than people think to get screwed by three strikes.