I'll leave a shovel in their line of sight.

Seven of the thirty or so snapdragons I planted a couple of weeks ago didn't make it. I spent enough on plants last month that I'm taking the "money back year guarantee" seriously, so I snagged them out of the ground and threw them in the trunk of my car as my money back evidence.

I forgot about them until a couple of days later when I got in my car and was overwhelmed by the smell of plant decay. I immediately drove to get my refund so I could "dump the bodies", so to speak, but the smell refuses to go away. It's surprisingly putrid. I get in my car now and I feel weird and guilty, like I'm a hitman in some garden mafia.

The good news is that the rest of the plants definitely seem to respond positively to fear.