The series will look at the twists and turns that take people from the same starting point in different directions. BBC Radio Four is already in touch with two individuals, Nick Petford and John Russell-Sanders, who attended the Refrigeration Engineering course at Eastleigh Technical College, Hampshire in 1978-79.
If you attended the same course either at the same time or just before/after (or have a friend or colleague who did), then contact dan.hardoon@bbc.co.uk or call 020 7765 5073.