This is from our local study group:
When she awoke one morning a sister remembered her time of the month was at hand and realised she had forgotten to replenish her supply of sanitary napkins. She was considering cancelling her morning of service when she heard the mailman. To her great surprise and delight, upon checking her mail, she saw a little package with a complementary sample. You guessed it. She was able to go to the group and related how Jehovah had come to her help just in the nick of time. A couple of sisters looked at her and said "Jehovah sent everyone a sample this morning" Thing is, I don't think she got it.