Last night HomePod in the living room answered my wife twice for Hey Siri. The problem is she was in the bedroom and expected her iPhone to take the request. Homepod is on my Apple ID account, so she didn’t want it to handle her request. After a minute or so, her iPhone responded twice to the previous “hey Siri” even though HomePod already had. HomePod blocked her iPhone from responding until it was done. By the time it allowed her iPhone to respond, Siri on the phone timed out too quickly to actually use...it wasn’t listening. My wife is a user in the Home app, so she can set scenes for lighting from her phone, so I assume this is why her Siri on her iPhone can be blocked by HomePod even though the speaker is using my Apple ID instead of her Apple ID.