ignore call w/o voicemail

[ulysses]

is there a way to ignore a call without having it sent to voicemail? currently what i have to do is answer then hang up... but there's got to be an easier way. the reason i ask is because i have "those" people that feel they *MUST* leave a vm everytime.. and it normally goes like this "hey man, it's joe, i called you but you didn't answer. alright man, talk to you later.. this is joe by the way"

thanks,
-u