Do you generally carry around 2 cameras when shooting a wedding?

Question:

Do you generally carry around 2 cameras when shooting a wedding?

I've done several weddings and only shoot with one camera (on my person). But I am wondering if I should start carrying a backup if the 1st one fails midway. It sounds logical to do so, but I'm wondering if it'll be too cumbersome. Let me know what you all do. Thanks! :)

Additional Details

6 days ago
ps- I always bring a second camera, I'm wondering if it should be hanging off me. haha.

Best Answer - Chosen by Asker: 6 days ago
ps- I always bring a second camera, I'm wondering if it should be hanging off me. haha.