Someone who, at school, volunteers to do an example on the board. Upon reaching the board, the student forgets how to solve the problem and freezes. In a confused and embarrased state, the student then makes his way back to his desk and is shamed by his fellow classmates.
Jon: "I'm done professor"
Professor: "then go ahead and do the sorting algorithm Jonathan"
*Jon draws a blank at the front of the class and returns to his desk shamefully*
When cross with someone, approach them with a blanket from behind. Once close enough, encompass them with said blanket and proceed to pummel them and flee the scene before they realize who has assaulted them.
Bob: *Walking in the parking lot*
Mark: *Persues and throws a blanket over Bob*
Mark: "Hehe, blanketed!"