"I feel incredibly guilty, I feel terrible about my heinous crime, and have suffered for 25 years because of my terrible guilt. Here's your rock back."

"Now, what about those other items on the mantel piece? Yep, that piece out of the Berlin Wall, Nelson Mandela's sock and a tagged grey hair (attributed to Obama)?"

clipped from news.yahoo.com "My husband and I apologize for our thoughtless and selfish act," the letter-writer said, requesting that the piece be put back at the Colosseum "so it may again be at rest back where it belongs." "I have been bothered by the fact that we took something that did not belong to us and am now returning it. I have felt badly about it whenever I would see this rock sitting on our shelf among our other artifacts from trips taken over the years of our lives," the letter read. In the letter, signed only "an American citizen," a woman writes that she and her husband picked up the fragment "as a spontaneous souvenir from nearby the Colosseum" on a trip about a quarter century ago.