Psycho Sensei is Very Very Sad This Evening

My beautiful little hairless Chinese Crested, Calvin, is missing. He's been gone since 10 this morning, and I'm so terribly worried he won't make it through the night. He was last seen in Great Falls Park. We went looking for him for hours and hours, and couldn't find him. I don't have any idea what to do now. We're devastated by this.
Please send good thoughts for Calvin's safe return to us.
If you happen to have any information, please write ooblick at ego dot org ASAP. Thanks.