You shouldn't wish negative consequences on others.
Lyle is at the mall when a clumsy man, Rick comes stumbling into him and bumps him pretty hard.
Lyle wants to bring attention to his pain.
Lyle tells Rick that he hurt him pretty bad and that he needs to watch where he's going.
Lyle yelps in pain and looks at Rick and tells him that he hopes someone does the same to him to be even.
Rick is very apologetic and says it was an accident before trying to see if he can help Lyle somehow.
Rick is sorry he hit Lyle but doesn't understand why Lyle hopes he gets hurt now too considering it was an accident.