Maybe start a new trend?!
A good thing I've heard here in the US (as you all shudder!) on "unicom" frequencies (similar to A/G, but where 1 frequency may be in use at 4+ fields) sounds like this:
Aircraft at hold: "Coolidge traffic (name of airport, not required in UK as it's obvious, and there's only one frequency at each field), Bonanza '345 holding short runway 23, anybody on base or final, please advise, Coolidge." (field name said again in case you missed it the first time)
A good idea, which gives people chance to speak up. Don't you think?
What's wrong with saying something like that if in doubt?! ie, "G-OE holding short 29, anyone on base or final please advise." Then, if you don't hear ought, cross the hold (call lining up/taking off etc) and do one! At least this way, you're covering your ass.
Just my tuppence worth, and if I'm ever back in the UK, you'll hear me using that phraseology on A/G if there's any doubt.