Possible ways to die include hysterics, fire, pufferfish nigiri, electrocution, cardiac explosion from anger, cow plant, drowning, overheating, exhaustion for elders, and starvation if the Sims are locked in their rooms.

How to die from hysterics: <div id="spoiler" style="display:none"> In the lounger there are multiple ways to gain playfulness: look at the artwork, drink essence of playfulness, read the comedy book, watch the comedy channel, tell joke, take a bubble bath and play in the tub (if already playful), eat the silly gummi worm pancakes, and use happiness to boost the playfulness to hysterical levels by lighting the fire, windchimes, drinking the happiness potion. The hysterical mood needs to be maintained for a certain amount of time so watch the time on the boosts. </div> <button title="Click to show/hide content" type="button" onclick="if(document.getElementById('spoiler') .style.display=='none') {document.getElementById('spoiler') .style.display=''}else{document.getElementById('spoiler') .style.display='none'}">Show/hide playfulness info</button>