#knocking

"Knocking on a door is so violent. Instead, try talking to the door to get it to open up to you. I should write a self-help book for door-to-door salesmen."

"Knocking on a door is so violent. Talk on the door. Try to get it to open up through communication, not violence."

"I have a doctorate degree from the School of Hard Knocks. I studied door-to-door salesmanship. This was before the doorbell was invented."

"I fish the old-fashioned way—with dynamite and screen doors for nets. Don’t be rude—knock before entering the kill zone."