No... just slightly strange. "Sinful" is one of those tricky words. Some people think it's "sinful" to work on the Sabbath. So it depends on your particular faith tradition. Duct taping your mouth is not inherently dangerous or abusive (since you're doing to yourself). Of course, if you find yourself doing it to the point of injuring yourself, you might want to discuss this with a sympathetic couselor.
Duct tape her mouth shut.
No.
"Cover her mouth with DUCT-tape, so she doesn't scream."
A duck
Originally, the tape was made of "duck cloth" material. But it's name was DUCT TAPE. However "duck" sounds like "duct" in the real name "duct tape". One company's competing brand is called "duck tape brand duct tape". But the correct name is still "duct tape".
Duct-Tape-Tastic Duct-Tape-Tacular
Duct tape is a silver tape created to join together ducts and keep air from escaping. It looks like a wide roll of tape. However, duct tape has become popular as a craft medium. One can purchase duct tape in nearly any color or design, including rainbow and camouflage.
Duct Tape
duct tape man is tyler thielen. that lives in Missouri and masters duct tape
Duct tape ...Unless the packaging tape has fibers.
Yes, you can wash duct tape
One of the rarest types of duct tape is neon yellow duct tape.