Transcribed Funny Warning Signs from Around The WorldįUNIAY! TUI WARNING SIGNS FROM AROUND THE WORLD SIGN NOT CAUTION THIS SIGN HAS IN USE SHARP EDGES DO NOT TOUCH THE EDGES OF THIS SIGN A brilliant example from the UK, this incredibly useful sign points only to a lack of understanding of the term 'redundant', and perhaps a council with excess budget, as someone had to sign off on actually making this.