OK I can replicate #2 the way you say however it's not something you should ever do except by accident. If I want a MIDI part on track 2 I would first select track 2. Now I'm not saying I agree with the way it works. Windows convention in other programs would automatically select the track whether it's a right click or an intentional left click thus preventing this accident. This is their choice and not a bug.

John
ESI Gigaport HD+
Lenovo Turion II /4 Gig Ram/ Win7x64 be
15.6" Monitor
"The only Band is a Real Band"
www.wintertexaninfo.com/BANDS/JohnnyD.php