u/Fun-Neighborhood-863

Help me to solve this

So I went to holiday and my friends going over to my house to feed my cats…. And here the mystery starts..

First day my friend sent me he found apple and maybe very used lemon at my door… I wasn’t paying attention, but next day my other friend sent that my door was full of ketchup and mustard…

I was like, maybe one neighbour was taking a revenge because my cat was very loud, but he send me later that he found quail eggs at the other neighbours door, so I think it’s something different..

I’m speechless, help me find out what happened here please..