No, there's no way to cheat a hair test. The only option is to shave it off so there is no hair to collect. Be warned, if you have no head hair the collector may try to take hair from your chest, arms, legs or pubic region.
Mixing baking soda and vinegar creates a bubbling effect. If used in a drain, such as a sink, it has the same effects as drano without all of the chemicals. Not sure about adding salt though.
