During the previous patient's treatment, a glass container broke when it was dropped to the floor. Which of the following is an appropriate way to clean up the shattered glass?
1) Sweep the glass pieces into a dustpan and dispose of them in a puncture-proof container.
2) Use a broom to sweep the glass pieces into a trash bag and seal it tightly.
3) Pick up the glass pieces with bare hands and throw them in the regular trash bin.
4) Leave the shattered glass on the floor and inform the janitorial staff.