Either way, questions should be encouraged as it provides you with some feedback on how interested the audience is and how well they're understanding you.
Even people who think the ban on gays in uniform is unjust are affronted that the nation’s top law school should actively discourage its students from serving their country.
The teen-agers are encouraged to go off and dance and pet with each other, even if they haven't finished their homework; for the grownups need desperately to relax, unobserved.