Thank you for your questions.
None of the situations you described are considered risks for HIV transmission.
HIV can be spread when a body fluid from someone who has HIV enters the blood stream of someone who does not have HIV. In what you have described this would not happen.
Check out our page on HIV to see how it is usually transmitted.
Let us know if that helps answer your question or if you need more information,
Health Nurse
For other people reading, please leave a comment below to let us know if this was helpful.