Get the Cockroach Drunk

A boy went to the hospital with a cockroach stuck in his ear [how did that happen???]. The doctor, who faces this situation on average up to twice a month, got the bug drunk in order to remove it. (link via Fark via Newmark's Door).
Question for economics of law folks: Who is the least-cost bearer of this risk?

Query: How do you get a cockroach drunk?
".... So, do you come here often? Would you like to come back to my place to see some of my photos?"