Oh man, i know the feeling. Wen I got my first dog as a single guy out on his own, I woke up to this weird grinding noise. Got up to investigate, flipped the hall light on. New dog stop chewing on a table and looked up at with an expression of "Hey dude, what's up?" Then promptly went back to chewing on the table. The speaker covers took some damage but not the woofers.
Cat tried to get to the spider plant on a speaker once. She had gotten addicted to the hallucinogenic effect and was going through withdrawals. Moved the plant to the speaker so she couldn't get to it. She tried, but the speaker cover came off scaring the crap out of her. I got that damn plant hung from the ceiling within an hour once I realized my speaker was in danger.