Pardon? A "pop" at whom, exactly? Certainly not Sardonicus, and not Mr Leonard either (quite accidental mistyping of his name earlier, by the way), merely a little attempt at humour. And Mr Leonard is rather given to taking "pops" at me and others fairly regularly in any case. The only "pop" here appears to be aimed from you to me, if you don't mind me saying so. That seems to be the sole purpose of your intervention, whereas mine was to express appreciation for another poster's contribution. Pots, kettles ...?