Dave Calfe

The provided news articles do not contain any information about an individual named Dave Calfe. Article 1 discusses potential strike action by train drivers in Great Britain due to a lack of toilet facilities and insufficient breaks, as reported by the union Aslef. Article 2 names Shaun Burton as the train driver who tragically died in a collision between two trains on the line between Bedford and Luton, an incident that also resulted in numerous injuries. As Dave Calfe is not mentioned in these reports, his relevance or current activities cannot be determined from this information.