I have a cat, it broke an ALTO F34CW once (well, not a big deal LOL). There was a Sylvania F34 from the late 90s with it, but fortunately I placed it on the protected side, so the ALTO broke, but not the Sylvania.
![Grin ;D](http://galleryoflights.org/mb/Smileys/classic/grin.gif)
I have a CGE F20T12/D now in service in my basement for a year (with pretty frequent use) and it still has no blackening yet! CGE made so good stuff back then...