You are lucky enough to meet your idols or at least get a friend who works at a venue to ask your heroes to sign something. You've brought along a great item and you're armed with pens/ permanent marker. And when you get the piece back, the damn pen has ceased or bled, basically mucked up that precious signing.
I had the pleasure of getting Cheap Trick to sign my copy of 'Budokan' I had waited years for them to play in Ireland and then they come...and I get the item signed and the silver pen smudges on all the signings wrecking that lovely Tom Petersen sig and Rick Nielsen's black marker is running out! Damn!