Jerry Finch has worked for Jane Hardware for many years. Jerry has been a model employee. He has not taken a vacation in over three years, always stating that work was too important. One of Jerry's primary jobs at the store is to open mail and list the checks received. He also collects cash from customers at the store's outdoor nursery area. There are times that things are so hectic that Jerry does not bother to use the register, simply making change from cash he carries with him. When things slow down at the store Jerry often offers to help Cindy post payments to the customer's accounts receivable ledger. Cindy is always happy to receive help since she is also quite busy and because Jerry is such a careful worker.

Required 

Identify any internal control principles that may be violated in the Jane Hardware store.