I worked at a well known Electrical Engineering company aka Great Engineering Cockups after Uni. After a few years one of the guys from Overseas support was on a trip to Iran and was arrested and banged up for allegedly spying. Most of the lads working there were in their 20s and from the Midlands or the North. This gent was an Oxbridge grad, very well spoken and in his 50’s. He came back for 1 day after 2 years to clear his desk. No explanation.