I know that the technology has gotten to the place where you can wave your foot under a certain area & the rear door opens. I hadn’t heard of the side doors opening with clapping, so I went off to make sure Everything I found said the side doors open with the fob or there are special buttons inside the vehicle. I think whoever was just messing with you about the clapping & they had planned on hitting the button on the fob when you clapped & then they were going to get their jollies thinking of you standing next to your new van clapping & waiting for the door to open. People can be sucj JERKS!!!