Some guy stole my glasses and jumped on the train. I'm going to hold it up so I can get them back.
Why do you think it would be okay to hold up the train.
Several reasons. I can't afford to replace them, I only use the ones on my nose for reading, they are very comfortable and because I get headaches with other glasses
I'm so sorry that this happened to you. It is an unfortunate situation that this person was able to steal your glasses. I would see if you could file a police report before you decide to hold up a train and inconvenience a bunch of other people.
What's your address?
I can understand being angry about this situation, but you should be more aware of your surroundings. Keep things that you value hidden and out of site from others especially in busy public places.