Bad guy breaks into my house I could care less what I thought would happen to me after the fact. Can or no can I'm shooting to put them down and whatever happens after happens.
If you've ever cracked off a live round inside of a small room or hallway, you'll know that sparing your hearing is far more important than them hearing you. It'll ring your bell for sure, probably leave you a bit disoriented, then you're really screwed. I don't own a can, but do keep electronic ear-pro hanging on my rifle for that very reason. It's not too comfortable and will probably cause permanent hearing damage.
Fantastic idea. Only suggestion- make sure you see the intruders face. I can just see some ghetto mama talking about her son was a saint.... Then if they don't have a gun.... Not to mention (as stupid as this sounds) you didn't give them the opportunity to run away. Lol