Events ported, now for cleanup if needed.

code/game/objects/items/devices/PDA/PDA.dm

@@ -65,6 +65,8 @@ var/global/list/obj/item/device/pda/PDAs = list()
 
 	var/obj/item/device/paicard/pai = null	// A slot for a personal AI device
 
+	var/spam_proof = FALSE // If true, it can't be spammed by random events.
+
 /obj/item/device/pda/examine(mob/user)
 	if(..(user, 1))
 		to_chat(user, "The time [stationtime2text()] is displayed in the corner of the screen.")
@@ -334,6 +336,8 @@ var/global/list/obj/item/device/pda/PDAs = list()
 /obj/item/device/pda/ai/pai
 	ttone = "assist"
 
+/obj/item/device/pda/ai/shell
+	spam_proof = TRUE // Since empty shells get a functional PDA.
 
 // Used for the PDA multicaster, which mirrors messages sent to it to a specific department,
 /obj/item/device/pda/multicaster
@@ -342,6 +346,7 @@ var/global/list/obj/item/device/pda/PDAs = list()
 	ttone = "data"
 	detonate = 0
 	news_silent = 1
+	spam_proof = TRUE // Spam messages don't actually work and its difficult to disable these.
 	var/list/cartridges_to_send_to = list()
 
 // This is what actually mirrors the message,
@@ -1194,6 +1199,15 @@ var/global/list/obj/item/device/pda/PDAs = list()
 	log_pda("(PDA: [sending_unit]) sent \"[message]\" to [name]",usr)
 	new_message = 1
 
+/obj/item/device/pda/proc/spam_message(sender, message)
+	var/reception_message = "\icon[src] <b>Message from [sender] (Unknown / spam?), </b>\"[message]\" (Unable to Reply)"
+	new_info(message_silent, ttone, reception_message)
+
+	if(prob(50)) // Give the AI an increased chance to intercept the message
+		for(var/mob/living/silicon/ai/ai in mob_list)
+			if(ai.aiPDA != src)
+				ai.show_message("<i>Intercepted message from <b>[sender]</b></i> (Unknown / spam?) <i>to <b>[owner]</b>: [message]</i>")
+
 /obj/item/device/pda/verb/verb_reset_pda()
 	set category = "Object"
 	set name = "Reset PDA"