(September 26, 2017, 9:40 AM EDT) -- LOS ANGELES — A couple sued the maker of Vaseline Petroleum Jelly and a store that sold it on California federal court on Sept. 18, saying they failed to warn the couple that the product can catch fire (Colleen Clarke, et al. v. Unilever United States Inc., et al., No. 2:17-cv-06856, C.D. Calif.)....