Flea and tick treatments for dogs and cats might seem like an odd choice for counterfeiters, but Americans spend more than $1 billion annually protecting our Fidos and Fluffies from these pests, so this market segment is a tempting target. The EPA warns consumers about what it calls “counterfeit pet pesticides” turning up on store shelves. “[P]roduct inventory that may be available at the retail level at this time could include both counterfeit and legitimately registered and marketed pesticides,” it warned in a statement. In addition to lacking child-safety features like tamper-resistant packaging, the fakes could also contain ingredients or concentrations that either could be too weak to be effective or powerful enough to sicken the pet.