Ditto to all ansewers plus a couple more.
However it happens to the best of them sometimes.
1.Use a little pectin. Dab some over the leaf with the tip of your finger and smooth it flat. No change in taste.
2. Sometimes if you chew gum or eat a piece of hard candy, just a quick lick over the loose piece will suffice. Be mindful of the flavour at the time. Coffee nips work well.
3. If you can, gently pull the piece off. It will change the taste a little. You can save all the pieces and roll your own. A few of us have done that before.
4. Leave the cello on. You'll see pretty colours!!
5. Masking tape. Not Scotch tape, it tastes funny.
6. Send the "bad" cigars to me and I'll dicipline them for you.
Finally, here in Boston we say "Shadup and Fahgehdaboudit"