Depends what Canon product you're speaking of...

I really don't have much against their SLRs and Digitals (well, the Digital EOS is the only one I've used)... if you're talking about professional video lenses, I'd probably scrunch up my face and make a small animal noise... and if you're talking about the prosumer XL-series and GL-series video cameras, I'll refrain from mentioning "XL is an approximation of the Kanji characters for leaf blower" and "GL stands for Good Luck - the last thing you tell your editor when handing over footage."

Bren R.