Denier!
That's when the alien/s are close by. I'm certain of it. I've seen them. They are "shadow people". For some strange reason they seem to always be in a semi amorphous dark coat(knee length) and wear a brimmed hat. You can see them from the corners of your eye when all is calm and you haven't slept for three days due to a big bore amphetamine binge. I know the squirrel and my dog have seen them too.
And if there are aliens who visit earth, how come they are never females? Blue boobs are cool IMHO. Green cooters with overlapping tenticles would be ok. Since the Sinead O'connor thing and that creepy hot Borg Queen, I'm cozy with hairless, dangerously out of control space women. The hot snakey woman from MIB II, and the one in Galaxy Quest that Monk became infatuated with, just bring me one! That one named Debbie that did that weird thing in 1980 doesn't count either. She just dressed funny, smelled of space patchoulli, and was a gifted contortionist with space crabs. Her phone number being disconnected was not an alien escape either. I think she just got tired of the DHHS calling her about spreading space crabs.
The lack of these space alien females worries me! Is the whole alien motivation to visit earth a space homo thing? Not enough boy toys over at K-Pax?