How do you deliver enough glycoside to kill a man?
How do you deliver it?
How much is enough?
These are the questions a poisoner must ask himself, if he is to be successful.
Would a teaspoon be enough?
By a bottle and ask the pharmacist.
Would you cut open a pasty and pour it in, or drizzle through a hole in the crust?
Would he see it, taste it?
Or would you pour it into his coffee?