user
When you catch it you can't throw it back.  You don't want it when some one gives it to you.  The longer it takes you to catch it, the worse it will be when you do.  Once you catch it there is no way you can drop it.  The closer the friend you are to some one, the higher the chances of you giving them the thing they don't want.  What am I talking about?
A: familiar
B: chickenpox
C: college
D: nonstarter
E: thunder
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

B

<|end_of_solution|>