diff --git a/combat.tex b/combat.tex
index 057d471ccf17f521ac63abe560c5296682299f41..6ecdde7da9b523ff9fc9781c0f119eeefa007c66 100644
--- a/combat.tex
+++ b/combat.tex
@@ -458,6 +458,10 @@ Stacked armour can consist of both partial and complete layers, meaning a roll c
 	Of course if this were \textit{partial} plate armour, any roll which gets 3 over the basilisk's \gls{tn} would only get the \gls{dr} of 5.
 }{}
 
+Standard armour cannot be stacked in this way.
+We assume plate, chain, and some leather-based armours already have padded armour underneath.
+Similarly, different types of natural \gls{dr} do not stack, and nobody becomes undead in different ways.
+
 \subsection{Weight}
 \index{Weight}