Have you ever had someone talk in your face or try and pray with you at church who really needed a breath mint? I'm sure most of us have been there at some point. When you're really praying good and getting a blessing and then someone with a severe case of halitosis comes right up and is like "YEESSS! PRAAAIIISE HHHHIIIIM! HAHHHH-LLELUJAH!" and you're like "Dear God help me NOWW!!" That's why it's important to carry mints in your purse/pocket.
Before altar working, pop one in your mouth! You don't want to scare visitors away! I mean, they probably can't get the Holy Ghost if they're holding their breath. Know what I mean? Also after dinner, before church, make sure to brush your teeth and use some mouth wash! It may seem funny, (that's because it is) but if you want to be an effective altar call worker, you can't have bad breath! Your bad breath may drive someone farrrrr away from you, and if you're always at the church, (hopefully you are) then they might stay away from church! So, know that your breath may play a role in someones salvation. Have a lovely day!