A couple years ago I wrote about $BP here
When I saw $MNST falling from $80 to $40 I waited a few days and entered a position at $43. At first I sold the $45 calls for $2.10. Those calls dropped to $0.10 a couple days before expiration.
I then sold the $47.50 calls for $2.10 and those dropped to $1.10 in a matter of hours.
I am now looking to sell the $47.50 calls again for $2.50, maybe to it will happen!
Disclosure: I am long MNST.