I let Hannah outside when the weather is nice out but I leave the patio doors open so she can come in and out when she wants. She gets sooo hot and thirsty when she is out there for just a little while. She comes in every 30 mi or so and gets a drink (even though I have a bowl of water outside too) and lays on the hardwood for about 5- 10 min, and then she will go back out and play some more. That is so sad. Maybe you could just tell your neighbor that you heard on YT about a yorkie that died of heat exhaustion by being left outside all day in the hot weather and you just wanted her to know...just a little white lie to help the yorkie....