Regarding the use of cinnamon oil - the kind used to make candy DON'T!!! It will blister skin in an instant and will also remove paint or varnish from furniture.

Cloves - before your dentist gives a shot of pain killer they sometimes rub a clove based substance on your gum.

To really get a feel for capsasian - wash 2 lbs of jalapeno peppers then cut in half length-wise and scrape the seeds out - don't wear gloves. The heat (while not always unpleasant) can be felt for several days after. It's kind of neat because should you accidently touch your genitals (or someone else's)the "touch" stays a while.

Oh, after seeding the peppers, stuff with cream cheese then wrap with 1/2 slice of bacon then bake until the bacon is done!