Mercy me, after spending 2 hours cleaning up my family tree and still not finished, I felt I needed to physically leave myself a future reminder just in case I go brain dead again.
Never, I repeat Never, download the GED.com of someone else directly into your file. I knew better and did it anyway.
Always, make a new file and check information out first before importing anything.
There now, I've said it and hopefully will not forget it again!