The first thing to do here is protect yourself. You don't know this guy and you don't have to work alongside him very much so that is a bonus. What you have to be sure of is that you don't get the blame for the shortcomings in the Glasgow office. Do your line mangers systems allow him to tell which of you is falling down or will it just look like "Glasgow has ****ed up"? Keep notes, keep a dossier, keep records of complaints. After a while if you e mail this guy copy your boss in to the message. I think that having a word with the miscreant first is probably the honest thing to do but if a short word doesn't do the trick do tell your boss. You can say you are concerned about your colleague, worried about his health etc etc. There may be genuine things the guy needs help with or trained on or he may just like watching BabeStation recorded on Sky plus.