"Are," "our," Arrrrr

Have you ever run across this error?

"This is are team, not yours."

It's probably from someone writing so fast they are only paying attention to the sound of words, not their function. The words "are" and "our" are so different in usage that it's difficult to get them mixed up, unless the writer is actually thinking phonetically and trying to describe the way a word sounds, not what it means.

This is one error that really makes me go Arrrrgh.

For the record, "our" is the possessive pronoun that belongs in the above sentence. "Are" is the verb form of "to be" that belongs in such sentences as, "The chips are down here," and "Where are you, Charlie Brown?"