Curiosity killed Ben the cat.
I work in Android Dev. I use scrcpy to control devices remotely. I realized some phones have chrome remote desktop on them...I thought, what if... I open my computer screen on the devices while these devices cast their screen to my computer. Classic mirror loop effect, align to the pixel, staring down the abyss of infinity mirroring... until i took off my earphones to go check this effect on one of the devices.... my computer audio was being played on all devices running chrome remote. :( I feel so stupid