Leave type such as sick is being deducted from the AL allowance of the requestor.
Also, if there is a request that includes a company holiday (a.k.a. vacation request from 7/2 - 7/6 would deduct for 7/4), an AL form is being created for that day and the time is being deducted from the users AL allowance. I don't think that the "Approve A/L - Administrators" button is setup to not deduct from non - AL days or Company Holidays.