Select all that apply

Which of the following is$($are$)$ allowed during laboratory exercises?

Making phone calls or texting on a mobile device

Using headphones or carbuds to listen to music as you work

Joking with your labmates by using simple pranks $($such as switching labels or moving beakers$)$

Changing experimental protocol to shorten the overall time necessary

Conducting minor experiments $($such as mixing extra rengents$)$ outsicle of the laboratory protocol for personal curiosity and learning

None of the above is allowed.