My advice to anyone who asked was to avoid bitcoins like the proverbial. My advice to anyone who ignored my advice was to get out as soon as possible, especially if the going looked good; which it did for a while. Now, guess what, their value has fallen by 500%. Interestingly, some who thought bitcoins were a sure thing were nervous about the stocks and shares ISAs I was recommending as an alternative. But no schadenfreude (kids + parents etc.) here.