uring my latest transit at Heathrow T5, the security staff were shouting instructions in English that was so fluent/native that none of us foreigners that were queueing understood a single word.
T5 "security" staff... grrr, don't get me started. Definitely the rudest and shoutiest I encounter these days. Especially when you encounter them at 6am having flown all the way from Australia or NZ.
Only place I go these days where nobody in the hotels speaks English are some outlying places in Russia. It's never a huge problem - they don't do much interaction anyway, in any language.