Are you a floor crumber or a bin crumber?

A matter has arisen in the library today - actually, in the library lunch room, to be specific - about people who are floor crumbers (they'll just sweep their crumbs straight onto the floor with blatant disregard for the folks who have to clean it up at 4am or whatever time the cleaners come here each morning ;)) vs. people who are just a little more thoughtful than that. In this particular office we have one Floor Crumber, one Bin Crumber and one person whose crumbing inclinations are currently unknown (we haven't asked her yet).

What kind of crumber are you?