I would have had a heart attack had this been me! Nearly all of my bags arrive in the mail and I always wonder if they (delivery person) knows what's inside. Would they take it if they did? :s
DH and I had a neighbor steal our mail once... We lived in a townhouse where the two mailboxes are right up next to each other, so I don't know if they were put in the wrong box, or taken from ours. It happened to be mutual fund/stock information on accounts we had! He never did anything with them as far as we could tell, but I guess he held onto them because he figured he had some good info. YIKES!