There's some software you can get that lets you control your computer from home, or someplace else. Is that software loaded? It lets the user control the mouse and the computer like you're there.
Also, when a computer gets bogged down sometimes it buffers all the things people do when it hangs momentarily. So then once its ready for you again, it'll do all those things you previously did when it was locked up all at once.
I was using my computer one day when the mouse like spazed out. It did alot of crzy stuff and i did'nt really have to much control. It would open like alot of progrmas and do very random things. This kept happening more and more often. It is probably a hardware problem cause when it was having one of these "attacks" i removed both mouse and keyboard quickly and it still kept doin this. Then one day it did this and messed up my computer where the desktop was gone. I restarted and it still was'nt there. I booted up in safe-mode still not there. I booted up in a different user it was there. So it's not working for my user and to top it all of idk whats up with the mouse spazz's.