#Person1#: Argh. . . I feel terrible, I keep sneezing and my eyes are all watery, what's wrong with me? 
#Person2#: Wow, you're not dying are you, it looks like you have a cold, you should take some medicine. 
#Person1#: I don't think it's a cold, I feel fine if I move a few feet away from my desk. 
#Person2#: Maybe we should put you into quarantine, ha ha, jokes aside, I think you might have an allergy. 
#Person1#: An allergy? I never thought about that, I don't think I'm allergic to pollen though and I'm desensitized to bee stings after being stung so many times, Hmm. . . 
#Person2#: Ow! Why did you chuck that peanut at me? 
#Person1#: Just checking if you're allergic to peanuts, I guess not. 
#Person2#: Not funny! I could have gone into Anaphylactic Shock. 
#Person1#: Okay, my bad, how about dust? This office is full of it. 
#Person2#: Yes the whole is office is dusty yet I only feel affected near our desks! 
#Person3#: Meow meow meow. 
#Person1#: You brought your cat into the office? ! 
#Person2#: Yes, it's Mr. Snuffle's birthday today, I didn't want him to be alone on his special day! 
#Person1#: ACHOO! Argh, put it away, ACHOO! 
#Person2#: I guess we found the problem, your allergic to cats! 
#Person1# feels terrible, and #Person2# thinks #Person1# might get an allergy. #Person2# tries to find out what triggers that, and it turns out that #Person1# is allergic to #Person2#'s cat.