Anyone who's ever lost anything knows how absolutely rubbish it is.
Whether it's your passport in a nightclub, your phone on holiday or a fiver you've misplaced - it's always rubbish and it never gets easier.
But, IMAGINE losing your laptop, PhD and a huge body of work you've put so much effort into for weeks, months and even years.
Yep, it happens. And it happened to Jamal Sul in Dublin. Check out the nightmare for yourself here.
One of my worst nightmares has happened to this poor man. RT to help! pic.twitter.com/lZr3aj2zGR
— J.K. Rowling (@jk_rowling) May 11, 2017
JK, being the incredibly sound woman that she is, has gotten involved to try and help this forlorn scholar try and find his potential magnum opus, lost on the streets of Dublin.
Does this taxi driver sound familiar? Have you heard of a story similar to this? Can you help Jamal out?
If you think you can, get in touch with either us or the Gardaí - let's get Jamal back his work.