Arbeloa's response was a light-hearted reaction to some more sinister allegations from a Spanish radio station that he had put a reducing tackle in on Bale during training, and the club had covered it up.
The Daily Mirror reports the claims:
The full-back had left Madrid's world-record signing with a "numb and blackened leg" after a strong challenge in training, and that the club had been forced to cover it up in order to protect the Spanish international - who has previously received strong criticism from breaking club captain Iker Casillas' hand in a practice game.
Presumably Arbeloa's cheery tweet puts those suggestions to bed. However, it does raise a whole new set of questions about Bale's superhuman ability to withstand being mowed down by a car.