Why doesn't my signature show up?

[BrianG]

... and "receive" (and "receiver"). IMO, I think the funky rule applies to "science" because the C is really silent...

True, "R" stands for Radio, which starts with a consonant. Normally, this would be preceeded with an "a". But since you are abbreviating it as "RC" (pronounced ARCEE), it is essentially a different word and not derived from what it stands for. So, the "an" rule applies.

The English language must use fuzzy logic.

And Rene; refrigerator magnets make you mad? That's... ummm... odd. I suppose once one considers past examples (anteater costumes and such), that's not really a departure from your norm.

I shouldn't talk though; certain shades of yellow makes me very angry and aggressive.