A blonde keeps having the same weird dream, so she goes to her doctor.
Doctor, “What is your dream about?”
Blonde, “I am being chased by a vampire…”
Doctor, “So, where are you in this dream?”
Blonde, “I am running in a hallway.”
Doctor, “Then what happens?”
Blonde, “Well, that’s the weird thing. In every single dream, the same thing happens. I always come to a door, but I can’t open it. I keep pushing the door and pushing the door, but it won’t budge!”
Doctor, “Does the door have any letters on it?”
Blonde, “Yes.”
Doctor, “And what do these letter spell?”
Blonde, “P.. U… L… L…”