His lips only quirked up further, still amused. Of course Megatron would know defenses had to exist. Anyone would assume as much. The details, however, were another matter altogether.

Too bad the latter comment was enough to remove the expression.

"Guards are supposed to guard. He shall not be learning any such techniques, even if he even stays in my employ at all."

Ratchet grunted in agreement, already deploying tools to deaden the already torn receptors and to pry off the covering of Megatron's hand.