Some species of rove beetle have a potent toxin called pederin in their hemolymph, which is like insect blood, and although these ant-like beetles don’t bite or sting if you squeeze one or even wipe one off of your face or neck, perhaps while you’re asleep, you could end up with an extremely itchy and painful rash. These insects are common in Penang especially in high rise buildings. The best thing you can do is place screens on your windows because if you don’t they will be attracted to the light and fly into your home. On the bright side pederin is being researched for its potential to slow the growth of cancerous tumors which just goes to show you how much we still have to learn from all the insects, plants, and other life we are causing to go extinct before we have a chance to research it. Let’s all do a better job at wasting less and conserving more in hopes of slowing down this sixth mass extinction that we are causing.