We try to share the work among Graiders and avoid over-assigning work to any one Graider, but this isn't error-proof. Keep your ongoing availability up to date with us so we know whether you're itching for a bunch of assignments or just higher chances at one, and if you are matched to more work than you meant to take on, just contact us as soon as possible. We can un-match you without penalty as long as you ask shortly after you're matched.
Here's more about our matching process.
Please visit our hall pass page for more information about giving up an assignment if you realize you've accidentally taken on too much work.