Both of you need a spanking!
Gadget

The Dell helplines and forums appear to have a universal solution for all problems - Return the Machine to Dell.
1. Although powering down has already been tried - try powering down AND removing the battery completely - leave the machine for 10 to 15 minutes and then return the battery and try booting the machine.
2. Try booting into safe mode and using the eject procedure from there
3. Check that you have the latest firmware edition for the drive from Dell - if not download and install the later version. If you already have the latest, try checking the Device Manager to see if there are problems highlighted against the hardware.
Other solutions which are available online BUT which I would NOT consider :-
remove disc from drive using tweezers or similar
hold laptop upright with disc slot facing down and shake the machine to dislodge the disc.Both of these are inherantly dangerous to the wellbeing of your machine and should only be considered if you wish the only future use for your machine to be as a doorstop.