Make Filling: Peel and slice each egg lengthwise. Carefully scoop or pop out egg yolks into a large mixing bowl. Mash egg yolks, then stir in mayonnaise, mustard, salt, and pepper until smooth.
Add Spiciness: Using sriracha in its squeeze bottle, squirt about 1/4 teaspoon of sriracha into each empty egg white. You can use less or more, depending on how spicy you want them to be.
Pipe Filling: Scoop egg yolk mixture into a small sandwich plastic bag. Cut off a tiny corner of it, and use this to pipe filling over each egg white.
Garnish & Serve: Top eggs with paprika, fresh chives, and crumbled bacon. Serve room temperature or chilled.