Shouldn't matter what you're doing
The thing logs you off, too. I can be doing the same thing, have to answer phone, whatever, read diff. posts, come back to reply I'm in the middle of 'rambling' on, and find out I'm 'logged off' - don't tell me about aggressive cookies, 'cuz I'm not buying that anymore.
Doesn't happen anywhere else. Right mouse copy really shouldn't be necessary.