[Perry sighs and adjusts his body language trying to seem more relaxed. He also purrs softly as if to say]
Sorry I'm used to end of the world kind of missions.
Other options:
no subject
[Oh has his front half deep in a box, rummaging for the one thing he needs right now. He may not speak platypus but the foot tapping was a clear signal for him to 'hurry up']
no subject
[Perry sighs and adjusts his body language trying to seem more relaxed. He also purrs softly as if to say]
Sorry I'm used to end of the world kind of missions.