Escape Trajectory

Okay, I'm a nerd. I was at an activity with my family, and my youngest son kept walking around the table. I told my wife he was "orbiting" the table. She's heard me say stuff like this before, so she just rolled her eyes at me. But then I raised the bar, when I stood up to grab my son and he tried to get away, and I said, "Look, he's on an escape trajectory!" My wife started busting up laughing, and the woman sitting next to her looked incredulous at how totally nerdy I am. But she knows me, so she started laughing, too.