Skunk!

Tired of being hit by water hoses at your weekly protest marches? Impervious to the sting of rubber bullets fired in your general direction? Baby, you ain't smelled nothing yet.

Israel has developed a new weapon that will make people think twice about dispersing when ordered. The "Skunk" is similar to ye olde water cannon, but the liquid that slams into you smells like a combination of rotten meat, dirty socks, and an open sewer. Tasty.

Oh, the best part - you can't get rid of the stink for three days, no matter how hard you scrub. That should help you determine which are your real friends.