Christian speaker and writer Beth Moore knows that sometimes God asks us to do things we aren't so comfortable with. One day she was at the airport and saw an elderly man in a wheelchair whose hair was a matted mess.
And as he rolled by her she felt the pull on her heart and then she heard the Lord tell her "I'm not asking you to witness to him, I'm asking you to brush his hair". And despite everything, she did.
And the story that man shared with Beth as she brushed his hair just goes to show the incredible things God can do through us, if we take the time to listen and act!