Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Category: police punishment 
Words: ticket, comfortable, prime, custody, fine
comfortable

Category: type of sandwich 
Words: picnic, open-faced, club, grilled cheese, lettuce
picnic

Category: moral characteristic 
Words: balanced, fair, make the grade, well, equitable

make the grade