him I wasn't interested. He asked if I didn't have bugs or something and I told him that I do my own spraying. He told me their stuff was better than what I could get and I told him I use a commercial grade stuff. He obviously didn't believe me and thought he could trap me in my supposed lie. He asked, "what kind of commercial grade stuff do you use?" He smirked, thinking that he got me and I responded, "suspend SC. I buy concentrate online and dilute it myself." He sheepishly left.