See also https://reflect.ucl.ac.uk/tatetate/2023/01/10/mentiinap/
Mentimeter is a great tool but the open text responses can leave you open to comments from the idiotic to the abusive. This video shows how you can minimise the impact the "funny" or subversive contributor can have.
See if you can spot the (deliberate, ahem) spelling error in the Mentimeter slides I use in this video.