When rotary cutting, it's always a good idea to actually clean off your cutting surface. If you just pile the strips and papers, and rulers randomly and push them to the side, things can get buried. Things like rotary cutters. Then when you turn to pick up your phone to take a photo, something from the bottom of the pile can fall off the table. Even a closed rotary cutter hurts when it hits your foot.
Trust me on this one.
Be careful friends, this is a dangerous sport we love!
PS, It still hurts.