umbrella as a weapon?

[Stranger]

The KGB made an umbrella/hypodermic needle. Basically you walk up to the intended target, "accidently" poke the peson with your umbrella, apologize, and walk away. When poking, a small hollow metal sphere the size of a pinhead is injected into the person. The hollow sphere is filled with one of the world's more toxic poisons (the name escapes me at the moment) and it is virtually impossible to detect. The metal sphere has small holes in it sealed with wax. As the sphere warms up inside the 98.6 degree body the wax melts and the poison is released into the body. The intended target will die.

It is "real world tested" and proven to be effective.