which means that if your computer is behaving correctly, reboots and does everything else like it should do, then you can go ahead a empty the trash.
That said, take a look around your machine BEFORE you empty it and make sure that all your stuff, pictures, movies, music, etc. is still there and available to you.
Try the restart first.
I wanted to empty the trash on my iMac and came across iMac in the trash. Don't know how it got there.
Thought it didn't belong in the trash and began moving it to the desktop. But there were thousands of files to be moved, so I stop the copying. In the trash iMac has a lot of dates. When I open them, there comes up the heading of Macintosh HD and such headings as--applications, library, users, a lot ending in tiff (1up dust.tiff, 1H-Text.tiff, etc.
Do I dare erase all those items? Don't want to crash my computer or get rid of essential items.