When you place in front of you something such as the back of a saddle, then there is no harm if someone passes in front of you (i.e. the other side of it).
قَالَ رَسُولُ اللَّهِ ﷺ إِذَا جَعَلْتَ بَيْنَ يَدَيْكَ مِثْلَ مُؤَخَّرَةِ الرَّحْلِ فَلاَ يَضُرُّكَ مَنْ مَرَّ بَيْنَ يَدَيْكَ