 Hawks said that she was "trying too hard to be  funny" and kept laughing out loud. Luckily, Walter Catlett (qv),  who played Constable Slocum, was a veteran comic. Hawks wanted him  to give Hepburn some tips, but he refused unless Hepburn asked him.  So Hawks got Hepburn to ask Catlett for advice. Hepburn was so  grateful that she asked Hawks to make Catletts part larger so that  he could be around if she needed more help.