I don't know about leaving items of clothing on the ground, but after I shot an old tuskless cow in the Zambezi valley, one of her mates decided to come after us.
We made a hasty retreat through the jesse, and I could hear the 'thonk,thonk' as she banged her trunk on the ground in an effort to pick our ground scent up.
The upshot of it all was she had to be shot as she got a bit too close .
M.