When the unmount action is performed through  the "device notifier", the applet clearly states that the device could be/ could be not unmount, but the Notifications system always display the same iconic content with a big green tick symbol saying either the unmount process was unsuccessful or successful. This can lead to terrible mistakes like removing the USB cable while the device is still mounted. I suggest to change the graphics of the message giving some red warning to the user.

Reproducible: Always

Steps to Reproduce:
1.mount a device 
2.open a dolphin/konsole session into it locking the device
3.umount the device

Actual Results:  
Notifications shows a green tick

Expected Results:  
Notifications shows a red alert of some kind.