The first omen that Lorraine says is a bad one is the woman selling peanuts. She doesn't hear Lorraine's order right, so she barks back at her like she doesn't like kids. At least that is how Lorraine takes her attitude. Then the peacock attacks her on the trail and she takes it as a bad omen because she's paranoid everyone or everything is out to get her. The third omen is when Lorraine sees a weird little boy staring at her in the Mammal Building. Lorraine explains her concerns as follows:
"He made me feel as though I was a bat in a cage and he was on the outside looking in at me. It made me feel very nervous" (59).
Lorraine is a very paranoid person as it is, but the omens do have symbolic value. The first two omens might represent Lorraine's mother because like the woman selling peanuts, it seems like her mother doesn't like her own daughter, let alone other kids her age. Then, the peacock attacking Lorraine could parallel when Lorraine is brought home by a cop in Chapter 14. Lorraine's mother responds by smacking her around when she finds out about Mr. Pignati, the crazy party, and all of the lies she's told. Finally, the little kid with the smirk on his face could represent Norton's creepiness and threatening attitude towards her and Mr. Pignati. Eventually, it is mostly Norton's shenanigans that ruin everything for Lorraine and John and their relationship with Mr. Pignati.