The landlord gave us an ultrasound machine to use until the extermination. It is plugged in above my counters, but will this still effect Grissom? How will the machine effect him and what should I do?
When you say ultrasound, I'm assuming you mean ultrasonic? These are usually designed to not interfere with the daily lives of pets but if/when you switch it on, keep an eye on Grissom for any odd behaviour. If he's going to be affected by it, he'll show it immediately.