One house I went to had a big black explosion mark on the wall around where the dimmer plate was, after the HO tried to dim a twin 5ft T8 Fluorescent fitting, with a 100VA incandescent dimmer. Silly boy!.
LOL
Heeh...makes a hell of a mess that doesn't it!!
Thanks for posting your graphic/explanation! Clears things up nicely.
If hindsight were foresight, we'd all be millionaires!