Continuity mistake: Before Beverly, Doc and Howard take a seat at the diner the waiter behind the counter next to a couple is suddenly at the far side of the counter.
Continuity mistake: When Beverly, Jenning and Howard arrive at the diner a waiter is serving and later spilling a jug of water. A shot later he is magically gone and he arrives and serves water again, though this time he doesn't spill it.
Continuity mistake: When Dr. Jenning is driving and says that the monster has taken hold of him he puts his left hand over his right hand, a shot later they swap positions.
Continuity mistake: Right before the bad guys place Howard on the counter his drink disappears from the counter and reappears 30 cm away to allow for the stunt.
Continuity mistake: Outside of the museum a bunch of kids reach out and touch Howard. The hands appear and disappear randomly between shots.
Continuity mistake: Outside of the museum Beverly and Howard argue next to a fountain. There's a shot of a man eating a sandwich in disbelief with a couple walking behind him. Shot cuts back to Howard for several seconds, and when it goes back to the sandwich man a couple continues their walk, they shouldn't be there.
Continuity mistake: After Howard and Beverly exit the museum, a couple on the left run away. And the following shot they are nowhere to be seen, at least they should get reflected on the glass.
Continuity mistake: After Phil shows the ascent of man drawing he walks behind Beverly but in the close-up he disappears. A shot later he is now standing on the opposite side of where he was.
Continuity mistake: When Beverly says goodbye to Howard the handle of her umbrella is either facing upwards or downwards depending on the shot.
Continuity mistake: During the fight against the punk before one of them says "You're breaking my fingers" Beverly's position behind changes between shots.
Continuity mistake: When Howard is reading the magazine the ashtray moves from being on the edge of the table to some inches away between shots.
Continuity mistake: During the credits Howard throws some letters and postcards on a chair. Their position changes between shots.
Continuity mistake: When the cops chase the microlight, the grey raft leaning against a stall changes positions between shots.
Continuity mistake: When Howard is about to fight in the bar he walks down the counter and passes by the same people twice.
Continuity mistake: In the diner, the glass of water next to Howard appears/disappears and changes positions between shots.
Continuity mistake: When Howard stares at the TV playing the news the couple to his left disappears between shots.
Continuity mistake: Howard arrives home and throws his coat on a chair. The way it lies changes between shots.
Continuity mistake: When Lt. Welker meets Howard his arm is bent. A shot later it's raised.
Continuity mistake: For a few moments during the flight scene near the end of the film Tim Robbins has no handcuffs on, but they are back on again seconds later.
Answer: As she said to Howard, she believed that he was using his "outlandish" appearance to be unable to find work and collect money through unemployment. She's probably dealt with people who did the same thing and was eventually sick of it.