When you remember when Cliff Richard played Rock and Roll;
When you listen to Radio 2;
When you remember when the UK had an indigenous car industry;
When you remember when the UK had an indigenous motor cycle industry;
When you remember when large parts of atlas maps were red;
When you expect a cheap guitar to be unplayable and untunable;
When you still have 15 amp 240V round pin electrical plugs in the garage - both 3 pin AND 2-pin!