Walking on ice can make you slide in a random direction

doc/fixes3-7-0.txt

@@ -1370,6 +1370,7 @@ monsters weren't randomly generating if exactly one square was outside LOS,
 when a spellbook was polymorphed into a novel and then incrementing spestudied
 	field turned it into a blank spellbook, the novel's title would stick:
 	"{spellbook of blank paper|plain spellbook} named <Discworld title>"
+walking on ice can make you slide in a random direction
 
 
 Fixes to 3.7.0-x General Problems Exposed Via git Repository

src/timeout.c

@@ -1235,6 +1235,10 @@ slip_or_trip(void)
             && (!ice_only || !rn2(3))) {
             You("lose your balance.");
             dismount_steed(DISMOUNT_FELL);
+        } else if (!rn2(10 + ACURR(A_DEX))) {
+            int dir = rn2(N_DIRS);
+
+            hurtle(xdir[dir], ydir[dir], 1, FALSE);
         }
     } else {
         if (on_foot) {