In the play Dinner for One, James the butler says, "I'll kill that cat," at time 14:05. What does this mean? Is he referring to the tiger rug which keeps tripping him, or is it a saying or colloqualism?
According to wikipedia, the "cat" reference is a consequence of drinking the water the flowers were standing in. That is, James has approached Mr. Winterbottom's chair; by mistake he picks up the cup with flowers, pitches them away, and drinks the water. The reference mentioned above comments:
which (in effect) says that after numerous variants of mis-pourings, he drinks by mistake from the vase rather than the cup, then with significant facial distortion exclaims, "I'll kill that cat!" – with implication, "this tastes like cat pee".