Use The Postbox Next Time
Delivery systems nowadays are known to be pretty efficient and accurate, so if you ask for your parcel to be sent through a window, then that’s exactly what you’re gonna get! It’s not the Delivery company’s fault for what happens after that.
The fact that this parcel went into the toilet is totally on the homeowner who stupidly requested this odd location. Sorry to be crass, but this unsuccessful attempt here falls on the dude with the ugly handwriting!