I've had botox many times, and when the "certified" botox administer injected me with botox, he demonstrated some odd, unorthodox methods. He insisted on pressing firmly (on my freshly botoxed forehead ), using a wiping method to try to even-out the lines. This resulted (1 week later, lasting 4 months!) in a very angry, lowered eyebrow look. I was often asked by my peers if I was "OK"? The best way I can describe my look, was Oscar The Grouch.
Do not get your forehead done here!