It will likely scare them the first time as it’s new/unfamiliar, but they’ll begin to normalize it with repeated events (as long as there is no physical/situational aggressiveness toward them). Once they acclimate to the singing, they might still get a small jump scare if you begin abruptly belting out something, but as you continue the song they would likely relax back down recognizing it as not a danger. I find most pets will try to hide/runaway when they don’t like a sound, so indifference from a pet is akin to general acceptance of your presence imo.

Here’s wishing you a wonderful performance!

Dogs can and do eat people. https://www.nationalgeographic.co.uk/animals/would-your-dog-eat-you-if-you-died-get-the-facts

I do agree that OP should look into already existing services that are actively monitored.

(Un)surprisingly, the US had lots of public pools, but they got removed because of racism. Definitely affects everyone especially the poor with little means of travel. https://www.marketplace.org/2021/02/15/public-pools-used-to-be-everywhere-in-america-then-racism-shut-them-down/

Are there any other good mushroom bible books to check out?

I believe it stands for Linus Tech Tips and Linus Media Group

Believe others when they tell you who they are and then shift your behavior accordingly.