Many times, but I usually find most of them.
I lost a bag of marbles in, like, the 3rd grade.......or was it second.......or no it was 1st grade, .......hell I don't know,.... I guess I lost my marbles!!!
one time i completely lost it because of a fight with me and my parents, and i got grounded for a long time! :P
Were they mad that you swallowed your marbles?
ha ha yeah XD