Trampled under foot - can you imagine what carpet, parquet, linoleum and the like have to endure? Every day, people trip, scamper, shuffle, trudge and tramp on them. Sometimes in high heels, sometimes with rug-ged boots or other heavy foot-wear. Of course, the adhesive underneath the floor surface has to endure these loads as well. "Where you find the ground, spread something good on it", said the Swiss poet and philosopher John CasparLavater. True, he probably was not thinki