They'll just kick it so hard the frame comes out, or they'll pick the lock.
Deadbolts are RIDICULOUSLY easy to pick, especially if it's only a single sided key. I wish they'd do them more like they do with new car keys, where the side that works the locky stuff is actually a CNC modeled curvy magig on it that is way more likely to not have a cousin that will work on it and way harder to pick.
Someone knew it was there, IE, be more careful of who you show **** to.
When you get a new computer, drill a large hole in two sides of the case that the power supply or motherboard doesn't occupy it, and put a cable lock through it and either lock it to something REALLY ****ING HEAVY, or lock it to the floor. (IE, drill two holes in your floor and run the cable through it.
The idea is that nothing is totally thiefproof, you just need to consume as much as their valuable *******ry time as you can. For examble, you can pry open even the most expensive motorcycle locks. Ones that are guaranteed to be impossible to break or pry apart. The kind that you can shoot with a gun and they won't break.
Also, get a really mean dog. And train it to bite nads.