Faced with the rumor about Corona beer being contaminated with urine (see discussion earlier in the chapter),

Question:

Faced with the rumor about Corona beer being contaminated with urine (see discussion earlier in the chapter), what course of action would you have taken if the Heineken distributor in Reno had not been identified as starting the rumor? In other words, if the source of the rumor were unknown, and it continued to persist, what steps would you have taken?