Spoon the horseradish (if desired) into a hi-ball glass and throw the ice (or frozen cherry tomatoes) on top.
Pour in the vodka, squeeze in some lemon juice and top up with the tomato juice.
Season with the Worcestershire sauce and Tabasco and stir.
Pour in the sherry (over the back of a spoon), grind over some black pepper, add the celery stick and serve with a couple of paracetamol.
Near the end of the drink, take care not to swallow all the horseradish sauce at the bottom of the glass (you don't want to bring the whole lot up again).