diff --git a/computer/tetris.lua b/computer/tetris.lua
index e985e0e6..32a02393 100644
--- a/computer/tetris.lua
+++ b/computer/tetris.lua
@@ -224,7 +224,7 @@ local function step(pos, fields)
 		run = tick()
 	end
 
-	if t ~= nil then
+	if t then
 	local scr = { formsize, background, 
 		t.boardstring, t.previewstring,
 		draw_shape(t.cur, t.x, t.y, t.rot, boardx, boardy),
diff --git a/fake_fire/init.lua b/fake_fire/init.lua
index b336e565..08760de3 100644
--- a/fake_fire/init.lua
+++ b/fake_fire/init.lua
@@ -20,7 +20,7 @@ local function start_smoke(pos, node, clicker, chimney)
 
 	if above == "air" and (not id or id == 0) then
 		id = minetest.add_particlespawner({
-			amount = 4, time = 0, collisiondetection = false,
+			amount = 4, time = 0, collisiondetection = true,
 			minpos = {x=pos.x-0.25, y=pos.y+0.4, z=pos.z-0.25},
 			maxpos = {x=pos.x+0.25, y=pos.y+5, z=pos.z+0.25},
 			minvel = {x=-0.2, y=0.3, z=-0.2}, maxvel = {x=0.2, y=1, z=0.2},
diff --git a/homedecor/electronics.lua b/homedecor/electronics.lua
index d7b35b47..3e7abbbf 100644
--- a/homedecor/electronics.lua
+++ b/homedecor/electronics.lua
@@ -145,12 +145,12 @@ homedecor.register("telephone", {
 minetest.register_abm({
 	nodenames = "homedecor:telephone",
 	interval = 30,
-	chance = 10,
+	chance = 15,
 	action = function(pos, node)
 		minetest.sound_play("homedecor_telephone_ringing", {
 		pos = pos,
 		gain = 1.0,
-		max_hear_distance = 10
+		max_hear_distance = 5
 	})
 	end
 })
diff --git a/homedecor/misc-nodes.lua b/homedecor/misc-nodes.lua
index d2271789..86957584 100644
--- a/homedecor/misc-nodes.lua
+++ b/homedecor/misc-nodes.lua
@@ -590,7 +590,8 @@ homedecor.register("beer_mug", {
 	groups = { snappy=3, oddly_breakable_by_hand=3 },
 	walkable = false,
 	sounds = default.node_sound_glass_defaults(),
-	selection_box = beer_cbox
+	selection_box = beer_cbox,
+	on_use = minetest.item_eat(2)
 })
 
 homedecor.register("tool_cabinet", {