Disable everything completely while at a mailbox, bank or guildbank

diff --git a/Monomyth.lua b/Monomyth.lua
index 4fc5826..768bfc5 100644
--- a/Monomyth.lua
+++ b/Monomyth.lua
@@ -1,10 +1,12 @@
 local Monomyth = CreateFrame('Frame')
 Monomyth:SetScript('OnEvent', function(self, event, ...) self[event](...) end)

+local atBank, atMail
+
 function Monomyth:Register(event, func)
 	self:RegisterEvent(event)
 	self[event] = function(...)
-		if(IsShiftKeyDown()) then
+		if(IsShiftKeyDown() or atBank or atMail) then
 			if(event == 'QUEST_DETAIL') then
 				QuestFrame_OnEvent(nil, event)
 			end
@@ -176,7 +178,6 @@ Monomyth:Register('QUEST_AUTOCOMPLETE', function(id)
 	end
 end)

-local atBank
 Monomyth:Register('BANKFRAME_OPENED', function()
 	atBank = true
 end)
@@ -193,6 +194,14 @@ Monomyth:Register('GUILDBANKFRAME_CLOSED', function()
 	atBank = false
 end)

+Monomyth:Register('MAIL_SHOW', function()
+	atMail = true
+end)
+
+Monomyth:Register('MAIL_CLOSED', function()
+	atMail = false
+end)
+
 local query, queried
 Monomyth:Register('QUEST_QUERY_COMPLETE', function()
 	if(query) then