Hmmm, have you read up a good deal on Scientology?
They can be incredibly pushy and can use devious means. In fact just this weekend a fellow named Keith Henson was apprehended and arrested for "harrassing a religion", in the original trial CoS actually convinced the judge that the word "Scientology" should not be mentioned and this caused his case to plummet as it was viewed as a hate crime.
I'd say for laughs it would be a good idea to go along, but keep your wits about you...
If they try to convince you of anything, just yell "Xenu"
