Paper Shredders and Traffic Lights

So I'm headed to work today from the Y. My new hi-tech security pass now lets me in to the gym hassle free by the way. I could probably walk faster than I could drive there, and I may start doing that. Anyway. There are five traffic lights between me and work and I have yet to make two of them in a row. It's like a joke. A five minute walk is a 15 minute drive because of the stop lights. The guy that sets the timers on these things has a very sick sense of humor.

At one of these stop lights there is a large bank. Today they had an 18 wheeler blocking the road. The 18 wheeler is a mobile shredding service. The mobile shredding service takes up all 53 feet of this trailer. It was a mystery to me so regardless of the time I had to stop and ask "Why does a bank need a mobile shredding service of this proportion?" The bank official outside looked at me like I was a reporter and said "What are you Eyewitness news?" I said "No, but I think I'd be concerned about putting money in bank that has this much to hide." He didn't find this amusing at all so I went on to work. I didn't figure he'd tell me, but no one else seemed to be asking why the Stanely Steemer of paper shredders was outside of a bank. It just makes you wonder - what are they covering up? What would a bank of that size need papershredusmaximus for? I'm sure someone will tell me they have to and nothing illegal is going on, but to a non-banking employee it looks funny. I didn't know in America we had a need for 53 feet of mobile shredding services, but I was proved wrong.