Actor Akshay Kumar Friday said he has requested the producers of "Housefull 4" to halt the film's shoot, asserting that he will not work with any "proven offenders". "Housefull 4" is being directed by Sajid Khan and features actor Nana Patekar, who have been accused of sexual harassment. Stringent action should be taken against the offenders, Kumar said in a brief statement posted on Twitter.