Truly they were hoist with their own petard.
We shall be hoist with our own petard.
Subsequent events showed that he was hoist by his own petard.
Now they are hoist with their own petard.
My grave concern is that the good idea of family credit is likely to be hoisted on the petard of that opposition.
Does he not realise that, by saying that, he hoists himself with his own petard?
I only wish that he gave us more opportunity of hoisting him with his own petard.
Yet, if we are not careful, we shall run out of road space, grind to a halt and be hoist by our own petard.