Of there possibly being food available?
One cat will come into the kitchen and start doing the whole rubbing-against-me-and-trying-to-lead-me-to-the-food-cupboard thing. And no matter where the other three are, they’ll all rise up from wherever they are snoozing and come in, and just sit around, waiting for this supposed food that’s on offer.
It’s always a different cat too so one of them is starting the rumour of food. How does it start? Do they just nominate on of themselves to go and try their luck?
Are my cats just particularly greedy?