I'll try my best to avoid choosing outcomes of events that might end up with a funny result, but I know they're not always predictable. I will probably risk it anyway though, since I want to send him to work at his best. The way I've been piling moodlets on him before work has been that I do the funny ones, or +playful ones, fairly early in the routine, before he gets hysterical. I still put some happy ones on after that. I haven't heard any mention of avoiding things that make a hysterical Sim happy, so I hope that's not risky as well.