Based on the context and the answer, generate a question. 

Context: " , " BITER ! ! ! " , and " GET HELP ! ! ! ! ! " I promise I will meditate more closely upon the causal relationship between going dumpster diving on Sunday afternoon and projectile vomiting Monday , and being brought to the Evil Place Where They Stick Things Up My Butt on Tuesday evening .

Answer:

Their immune system was n't used to the germs from the dumpster .



What is the most likely reason that the writer get sick on Monday ?