Nicking

"Your cheek's bleeding! What happened?" "Well, my shaver broke! Then I used a razor and ended up nicking myself."

What's that you're nicking?

Sally caught Ben nicking her chocolate biscuits.

He was caught nicking sweets.

Nicking is probably the wrong word.

The physicians sounded a warning about shaving among both men and women who have pigmented moles on the skin. Such moles, they cautioned, should never be irritated by repeated nickings.