Don't stick wasabi up your nose (idea)

For that matter, don't stick anything up your nose.

Also, don't stick wasabi anywhere, let alone up your nose. If you feel the urge to use this deadly stuff, please follow some guidelines for safe wasabi:

• Don't eat or drink it straight up. The people across from you will probably not appreciate your impersonation of a strangling fire-breathing dragon.
• Don't mistake it for something else. This is important. As has been said before, it looks a great deal like certain types of ice cream and toothpaste. The only known precaution one can take is to be very, very careful around pistachio and mint ice cream.
• While it is an antibiotic, it is not recommended for external use as such.
• Mix soy sauce into it. More accurately, mix it into soy sauce. Accepted proportions range from 1 to 5 parts wasabi per thousand (ppt).
• Replacing caviar with wasabi tobiko is, while definitely an amusing practical joke, not apt to further your repute as a host/hostess.
• A similar, fiendish plot is replacing legitimate, innocuous peas with wasabi peas, apparently an actual snack for anyone whose palate happens to be made of titanium.

That said, it's quite good with tuna (sushi, NOT salad). However, mixing it with benishouga, pickled ginger, does not lead to desirable results. Especially not on peanut butter. Unless you're pregnant.