I'll be on one line or another and somebody will obviously get booted direct to voicemail due to there being a call in progress so then they immediately call the other line, no, that's just fine, I'll answer it with my other ear 
It's bizarre behaviour right? Or am I the nutter? I find it even worse when they leave a voicemail on the engaged line first and then still call the other, erm... why leave a voicemail and then call me again immediately? That's just odd surely?
Am I going nuts or does this happen to others too?

It's bizarre behaviour right? Or am I the nutter? I find it even worse when they leave a voicemail on the engaged line first and then still call the other, erm... why leave a voicemail and then call me again immediately? That's just odd surely?
Am I going nuts or does this happen to others too?