I wouldn't have considered it either, it's cheating! If your circumstances merit it then there could be special circumstances taken into account.
Many people experience stressful situations while studying but don't resort to dishonest means.
I would hope that the lecturers marking coursework are well up on the various services out there and increased potential for cheating.
Writing styles are quite personal so there may well be an obvious difference between your usual standard of work and the work you hand in.
Is it really worth sacrificing your degree for and possible future jobs - a cheat is not really an attractive proposition to a future employer.
Would you also want the feeling of achieving your degree through your own hard work taken away from you?