Dina Lohan is one person who was not amused by Rob Schneider's guest appearance on the Tonight Show with Jay Leno Tuesday during which he dressed as Lindsay Lohan. "We have a great respect for Jay Leno but we are disappointed in the path he chose to allow a guest to make light of a very serious situation concerning Lindsay," Dina told Access Hollywood's Billy Bush in an e-mail Thursday. On Tuesday, Schneider was booked as a last-minute replacement for Lohan, who canceled her scheduled appearance after she was arrested on drunk-driving charges. For the spot, Schneider dressed in drag as the actress, complete with blond wig, black dress and an alcohol-monitoring bracelet strapped to his leg. "This is a very personal and private matter and our only concern is to get Lindsay the help that she needs," Dina adds in the e-mail. "We will get through this together and it will make our family stronger." Lindsay's mom also sent her gratitude to another late-night host for steering clear of her 21-year-old-daughter's recent trouble. "Thank you to Craig Ferguson for not making a mockery of such a serious situation to which teens and young adults are facing across the country!" wrote Dina. She added: "Our thoughts and prayers go out to all families who have had to see a family member through tough times." The email is signed, "Dina and Family."