For aircraft to depart and arrive at an airport over the same path in opposite directions is not the happiest arrangement and is in fact an accident waiting to happen.
Unfortunately, some doctors are an accident waiting to happen.
First, there was the immediate tragedy and the clear consensus that it was an accident waiting to happen.
Many aid agencies say that, economically, it was an accident waiting to happen.
In other words, it is an accident waiting to happen.
It is "an accident waiting to happen", as my constituent says in his letter.
Still, the road is an accident waiting to happen.
I believe that it is an accident waiting to happen.