This should not be taken as an exhaustive list by any means.
- Has your instructor warned you that course policy rewards cheating and plagiarism with a failing grade for the course, and with the filing of academic integrity violation reporting forms with the relevant administrative offices? If so, cheating might be kind of risky.
- Have you been asked to indicate your explicit agreement to a statement that particular sources of information and help are not allowed for this assignment? If so, consulting one of those sources for information and help is not allowed (i.e., it will probably be viewed as cheating), and the instructor who secured your agreement to the ground rules may well pursue sanctions against you if you do it.
- Is the assignment on which you're considering cheating one of the requirements for an ethics course? If so, being caught cheating is likely to demonstrate something like a lack of comprehension of the course content. This may well undercut any plea for leniency you're inclined to make.
- Are you betting that the instructor evaluating your work will not detect the cheating? If so, you might want to entertain the possibility that he or she can distinguish typical student work from a Googled source, and that past instances of cheating on his or her watch have sharpened his or her discernment. You might also recall that professorial types generally have strong research skills and experience with search engines like Google.
- Do you need to pass the particular course in which you are considering cheating in order to graduate in your major? If so, there might be a principled reason that the people training you in your major subject think you should learn the content of this course -- and cheating (rather than actually mastering that content) might put you at a disadvantage in your future education or employment at that kind of major. Also, if you're caught cheating, it may delay your ability to graduate in your chosen major.
- Is there only one faculty member who teaches this course-required-for-your-major in which you are considering cheating? That means if you are caught cheating and you want to graduate in this major, you will have to take this course again with this same instructor who already failed you once for cheating. Is that possibility really less uncomfortable than buckling down and doing your own damn work in the first place?
I mean, seriously. Maybe it's time to "update your priors" or something, kids.