Instruct: Classify the given comments as either toxic or not toxic
Query: I always consider subsidiaries in tax havens to be a red flag when I analyse a company. I figure if a company seems not to treat the tax man fairly, (is aggressively avoiding taxes) they will likely treat their external share owners badly at some point as well. A couple of cases in point where mention of tax havens steered me clear were Sino-Forest and Valeant.