diff -u -r1.12 xtra2.c
--- src/xtra2.c	2001/04/28 12:46:13	1.12
+++ src/xtra2.c	2001/04/29 08:52:00
@@ -2238,7 +2238,7 @@
 		 * Run (sometimes) if at 10% or less of max hit points,
 		 * or (usually) when hit for half its current hit points
 		 */
-		if (((percentage <= 10) && (rand_int(10) < percentage)) ||
+		if ((randint(10) >= percentage) ||
 		    ((dam >= m_ptr->hp) && (rand_int(100) < 80)))
 		{
 			/* Hack -- note fear */