I just put out a new cache the other day and the first cacher to log it online claimed to have lost their pen and said they used motor oil and spit and clay to mark the log. The 2 smudges were theirs. Well I went out to check and found the log to be perfectly clean, not a mark, smudge, speck of dirt, or motor oil on it. Also no footprints around the cache as I was careful to erase any that I had left placing it. This is a small micro cache with scroll log concealed in a very specific way. Since this would be a FTF for my cache, I have emailed the cacher (who has never logged a cache closer than 200 miles from mine) saying I would be happy to sign the log for him to validate his first to find if they will just email me with a description of the cache and how it was concealed. I am waiting for a reply. My research since sending that email today seems to indicate I am not out of line if I choose to delete the log. If this wasn't a FTF, I wouldn't be making such a deal of it. I haven't decided how much time to give them , but feel like a week should be plenty maybe 2 at the most.