Velcro pants band will keep your pants out of the chain, but also watch how you tie your shoelaces.
Over 70% of the stopping power is in the front brakes. In a panic or quick stop shift your body weight toward the rear. If you are not used to this type of brake, it is always good to practice stopping at various speeds until you feel comfortable.
Merry Christmas, I wonder how he gets bikes down the chimney--In pieces?