if you want Mr buddlylee to walk confinedlty and quickly over the wiggly bridge I suggest a agility training apparatis whe use to get the dog use to and read for the teater totter is is called a buja ( after the inventer promotor brenda Nuja) board or tippy board/. That a 2x2 or 3 x3 sheet of plywood a sock and a tennis ball. Put the tennis ball in the sock and staple the sock to the board. Put the board on a hard surface tennis ball side down. Reward the dog for steping on the board progressing to it rides the board tipping it in all directions.