Not that I condone lying on a CV, I can appreciate that previous work history can look worse than they actually were, therefore not allowing you to get past the first stage of the application. I am a law graduate, and additionally have amasters in international criminal law - Icompleted these degrees between the ages of 24 and 30. However, my previous employment was within the civil engineering indusrty, and was mostly manually based - as such, I used to say that I ran my own small business in that field - something that is very difficult to check up on, and would have to be worded correctly so as not to get yourself into trouble or lie too much.
Good luck
Steve