Its just come to me as to when I dislike bar blockers.When I am ticking I only want new beers and can spot beers I have had from quite a distance and its slightly embarrassing to go in a pub with 6 or 7 handpumps look at whats on and say thanks but nothing for me.The bar staff must think how many beers must we put on to satisfy that guy.I peer through windows sometimes and if a pump clip looks new go in but with the bar blockers its difficult to do that.