Numerous calls.  No message.

Called for my dad who wasn't home. They hung up when I asked who they were.

Calling and hanging up after 2 rings

ETA: They called back again, less than 5 min later. The second caller told me they are Kids Education Yes Committee. It sounds like a good cause and I feel bad for having an attitude with her, but the first caller and other comments on here had already left a bad impression.