You are not crazy at all! I believe it's true but i still get freaked out by it lol We had to put our dog Charlie to sleep, it was in 2001 i think. The other day my mom goes "You know Charlie Visits me"
I'm like wha???
She goes "Oh yea he was here the other night when you were at Edward's, i heard him under the bed" (when he was here he used to sleep under her bed.) Anyway that totally freaked me out. She said she feels him around and that made me wonder if that is why Sophie barks sometimes at nothing. The other 2 don't bark but they are naturally friendly with all dogs, Sophie isn't. Since she doesn't know Charlie I assume that is why she barks. It also scared me 'cause one night about 1 yr ago i was half asleep in my room and i could have SWORN i heard Charlie's footsteps! I swear! You know how all dogs sound diff. when they walk? Like atleast mine do, they all sound diff., well Charlie had problems with his legs and used to drag his feet. Well i heard his feet dragging towards my door, then it stopped. I never mentioned it to anyone and just thought that was me hearing things but now that my mom said that it got me thinking LOL Sooo no you're not crazy. Oh and also on Youtube there are pictures of ghost dogs...so i guess they do still linger around.