When I am using the laptop and need to leave for a short time, I set it on the floor turned in facing a piece of furniture. The keyboard slides under the furniture, the monitor is up against the furniture. Prevents any pets from stepping on the keyboard and doing stuff! You won't be able to teach them NOT to stop on it, sit on it etc. At least, I haven't found a way in almost 2 years!

As for the trash can, you have to get a new one with a different type lid. I had to change all the trash cans in my home as the cts figured out how to tip and dump everything. Tipping doesn't bother me, it is the dumping!

Good luck!!