@Dorosp, sorry to hear this. I hope you only had unimportant materials on the machine and it’s only the hardware lose. I always carry the security lock cable thing and if needed lock to furniture or anything, makes it harder for them to take the furniture as well.
I don’t have a spare laptop but attending the ‘art and brainwaves’ workshop, if you didn’t get anything by then you are welcome to sit with me and share the exercises. Also ask the organizers at Node13 and also the guys teaching the workshops, I’m sure someone has the spare machine just for a few hours at a time… it’s not always that one has an unfortunate event like this, so Node13 people should help you, if they can.