Because things can go boom when wired incorrect. The fuse was too heavy, blowing out too late, making a triac spit in half. And let the mains fuse blow just afther the device fuse blew with a flash and a bang.
Lucky I found a store that sells em. Hopefully I get a new triac next week, and hopefull thats the only thing that broke.
Driving trough Paris is quite a challenge. Although I don't own a license I'm still a decent driver I think. Kwsia however, doesn't seem to agree to that: