Many years ago when my boys were young teenagers we used to have to take them off every Saturday to play Warhammer, the strategy game you play in person with others with characters you bought and lovingly painted yourself. It became a big obsession with both of them, rivalling even Pokemon and I got to know Games Workshop well.

I spoke to colleagues at work and unless they also had boys of a similar age they were oblivious to the whole phenomenon.

These Warhammer characters were not cheap and the rules of game were so obtuse that it was amazing so many teenage boys became so hooked (or maybe not, knowing teenage boys).

Anyway, I figured this was an interesting business model so I bought a few shares. Today the company was featured in The Economist as the best performing stock in the FTSE 250.

I may have had to wait 15 years, but I can really pick a stock – this one has risen by over 526%.