When you’re at a restaurant, wash your hands after ordering. The menu is often the dirtiest thing you can touch.
To avoid viruses: Don’t accept upgrade invitations for third party software that pop up on your computer – when you get an upgrade prompt, deny it, then go to the software site and upgrade directly from the site.
Maybe alcohol should be served in Capri Sun pouches. When you can’t get the straw in the hole any more you’ve had enough.