(LATimes.com) Small-business owners Constance and Ron Smith of Carson are running out of options. Battered by the recession, their business selling an anti-slip spray for tires is behind on lease payments. Their warehouse forklift has been repossessed. And their nerves are frayed. The Smiths, who are passionate about their product, have drained their retirement account, along with their home equity, while piling up credit card debt to keep RonCon Smith Enterprises Inc. afloat.