Should I say ‘have fun,’ or is that the wrong sentiment?” “‘Have fun’ works as well as anything.” She grinned. “Have fun, then.” I tried to sound enthusiastic, but of course she wasn’t fooled. “I’ll try. And you try to be safe, please.”“Should I say ‘have fun,’ or is that the wrong sentiment?” “‘Have fun’ works as well as anything.” She grinned. “Have fun, then.” I tried to sound enthusiastic, but of course she wasn’t fooled. “I’ll try. And you try to be safe, please.