I also agree that it is wrong to physically clear a room before a presentation. If there are two sessions back-to-back in one room, and I'M ALREADY IN THERE, it seems ridiculous to ask me to get up and gather my things and go to the back of the line…
I emailed this resource to my teachers during the Pasadena presentation (along with the tip about looking for the links with a sailboat!)...and have already received two thank-yous from teachers who found a link they liked. Big thank you to Pasadena…