I ' m a fucking gimp for christ 's sake . And I ca n't miss any more work ! I ' m so glad my boss told me that because Friday was a mandatory day to let everyone off [ and I thought I would n't be paid because I ' m on contract . ] and he said he 'd pay me for Friday .

Based on the preceding passage, answer the following question What is a likely reason that the speaker is not able to miss any more work ?
They have maxed out their available sick days and must come in to everyday of work to keep the job