Does anyone else get business related emails from existing and new contacts with totally crazy/stupid subject lines?

Today i got 3 emails from clients about some mainstream site development stuff and not one of the email subjects made any sense, i actually almost threw them into my spam folder because thats what they looked like from the subject line.

I get that we're working online and its less formal than most other types of business but still, subject lines like 'funny stuff' that actually doesn't contain anything to do with a serious business issue makes no sense to me at all.

Am i alone in this way of thinking?

Regards,

Lee