K but I really think that the big Lunch Thief tweetstorm going around is easy to solve: she mistook the guy's lunch for takeout of her own that she thought was old/had gone bad. Isn't that the simplest explanation?
also we haven't really gotten into how Lunch Thief feels about having been made into a national twitter meme by her coworker, ESPECIALLY if this is all a big misunderstanding and Lunch Thief was just confused.