On 90% of the jobs you can send an email and cancel if you have to but too many times will get you dropped from the company. And some are just complete dips and look at as we have enough people. If you can not get out of your hospital bed to do the shop, we do not need you so bye-bye. Even if you are on by-pass getting you heart plumbing rerouted. Nor does it count if it is complications as they get the pill dosage right later down the line. No names are mentioned to protect the guilty.