You can get excused for physical ailments so just tell them You're to FAT to serve wrote:

Factors used to determine a worker’s status under the common-law test
Factor	Worker is an employee if—	Worker is an independent contractor if—
Right to control	Employer controls details of the work	Worker controls details of the work
Type of business	Worker is not engaged in business or occupation distinct from employer’s	Worker operates in business that is distinct from employer’s business
Supervision	Employer supervises worker	Work is done without supervision
Skill level	Skill level need not be high or unique	Skill level is specialized, is unique, or requires substantial training
Tools and materials	Employer provides instrumentalities, tools, and location of workplace	Worker provides instrumentalities and tools of workplace and works at a site other than the employer’s
Continuing relationship	Worker is employed for extended, continuous period	Worker is employed for specific project or for limited time
Method of payment	Worker is paid by the hour, or other computation based on time worked	Worker is paid by the project is used to determine pay
Integration	Work is part of employer’s regular business	Work is not part of employer’s regular business
Intent	Employer and worker intend to create an employer-employee relationship	Employer and worker do not intend to create an employer-employee relationship
Employment by more than one firm	Worker provides services only to one employer	Worker provides services to more than one business