After searching the net for a bit, I found I wasn't alone but definitely wasn't the worst case:
Deborah Rehner says:
September 7, 2012 at 6:01 am
I did a dumb thing. I was visiting someone and used their MacBook (OS X 10.6) to sync photos that I had downloaded to their MacBook from my camera. But, not knowing what I do now, I synced all the photos from their MacBook = including theirs! Now, I cannot get their photos off my iPad. I’m expecting that I can go back to their MacBook and delete them as you describe above, using iTunes and deselecting their photos, but they are several thousand miles away. I could reset my iPad, but that’s rather drastic. Is there anyway to just reset the Photos on the iPad – delete all the photos. I am pretty sure that the answer is, “No,” but it’s worth asking.
Andy Brovey says:
September 7, 2012 at 10:20 am
You can do this and keep just the photos you want. No need to delete them all. If you have a Mac, you can use the Image Capture program. If you don’t, find a friend who does.
Connect your iPad to the Mac. If iPhoto or iTunes open on the Mac, quit the programs. Start Image Capture on the Mac. The Mac will see your connected iPad. Click on the iPad in the device list in Image Capture. You’ll see all the photos on your iPad. Then follow these directions to select and delete: http://ipadacademy.com/2011/09/another-way-to-quickly-delete-photos-from-your-ipad-mac-only
The thing is, this so called doctor Andy didn't provide a solution to this poor fellow that might not have a mac. That's me! LOL so I AM in a worse situation.