ADVANCING TECHNOLOGY: Sent this arsenal of water guns to my brother — one for each member of the family, and cheap! — and got this email in reply: “Weeeee! Got the squirt guns today. They came in a box about the size of a sofa. Had a total blast squirting and being squirted by. Man, squirtgun technology has come a hundred miles since we were kids. ” Yeah, I’m jealous.