I had a boss who would send audio messages constantly. I'd be having a conversation with him, he'd get a text message on his phone, stop talking to me to mess with this phone, do a voice recording, mess it up cause he'd whisper it so others wouldn't hear him (we still totally could), repeat it, rinse and repeat until he got it right, send it, then would ask me what we were talking about.
I'm convinced people who use voice messages have no situational awareness and are potentially psychopaths
As embedded dev, the stack trace alone scares me. It would be funny to watch the Java runtime blow the 8 frame deep stack on a PIC18 tho