Haha I will keep that in mind!
The in laws have 3 dogs about that size. Also 2 outdoor cats plus a rotation of strays (and occasionally racoons). It's amazing how quickly food adds up. I work for a pet food company... occasionally we get food too, it's like a black Friday sale when they do that.
The ILs have been great to us tho... letting us stay in our crazy rental/housing market allowed us to pay for our wedding in cash, pay off our student loans, and save a good chunk for a downpayment. Its had its challenges and sacrifices, but luckily we get along very well. They're like second parents to me, and have been more parents than my own father lately. So we try to do a lot of shopping, cooking, and pick up the tab when we go out. Even if we started buying all the pet food, that would be nothing compared to what they've saved us and allowed us to do. I told MIL about the petco bc and she said, I'll give you $40. I told her I'd like to see her try.
And this just happened: DH is at the racetrack with a friend tonight, so I just told DHs parents I was going to get arby's, would they like anything? FIL went to get cash and I snuck out the door, he chased me out to the driveway to try and give it to me. And while he was getting cash, MIL was like I forgot to tell you, she got a deal on a petco gift card for the next time we need dog food so we need to give her money for that...
Thats okay, anytime they succeed in giving us cash, it goes to a travel fund for them. For the last year or so it had been for our wedding trip, I used it to buy discounted Disney gcs for them for food and stuff and presented it to them before we left. This time it will go to the surprise family cruise trip were planning for next summer...