Need something to tell my mom!?

i need to tell my mom i have a job. but it needs to be a job where noone can visit me because shes the type of person who will come visit me at work.
i need an excuse to leave the house-any suggestions? please no harsh comments.
i do have a job i just dont want her knowing about it

Have you actually got a job or is this all a tissue of lies...?

Getting a job would give you a reason, not an excuse - and your work colleagues will be able to tell her where to go if she insists on turning up.